Become a fan of Slashdot on Facebook

 



Forgot your password?
typodupeerror
×
Media Data Storage Movies Television

A DVD Jukebox Without the DVDs? 53

Malphaedrius asks: "I'm moving into a friends house with limited storage space and small children with curious fingers. I have decided to make a DVR running Linux and MythTV for two reasons. First, I want a DVR (who doesn't). Second, I want to take our collaborative DVD collections and get them out of the living room, away from grabbing hands. The question, after such a long declaration of intent, is can one rip a DVD and compress it without losing the special features and menus? I don't mind losing them but it would be nice to not have to dig out the discs if I want to listen to the director's commentary. Granted special features and multiple tracks will greatly increase the storage space needed and may be a bad idea in retrospect, but it would be nice to have the option. Has anyone built anything remotely similar to this? If so, how well has it worked?"
This discussion has been archived. No new comments can be posted.

A DVD Jukebox Without the DVDs?

Comments Filter:
  • If I were you, Id rip the dvd to an ISO file, then compress. When A movie is requested, just decompress, and mount the ISO. Then it would be no different than having the DVD in a drive.
    Of course Id either find or write an Application that could add DVDs, and then play them.
    • by oever ( 233119 ) on Monday June 06, 2005 @05:11PM (#12739911) Homepage
      No need for decompressing the image first. Just mount the compressed image with cloop [google.com].

    • Is there a point to compressing a DVD ISO? The content itself is already lossless mpeg compression, right?

      Now, if you were going to do lossy compression, that's another matter, but you can't do that to an entire ISO, because ISOs contain info other than audiovisual, which wouldn't be decompressed properly, meaning the image won't play.

      Instead of going to the hassle of figuring out how to get the same ISO, but with lossy compression of the audiovisual content, you should probably just invest in a couple o
      • You've got it backwards. MPEG2 is lossy.
      • I was actually thinking of using a pure file compression like bzip, gzip or rar. It would take a while for a dvd to load if you did it this way, but it will give a fairly large boost to space, its not necessary, but if hard drive space is a problem, it might be good to do especially for less frequently watched movies.
        • Actually, the compression will be so small as to not be noticeable. Try it for yourself.
          • What the parent said is correct. No gain from zipping an .ISO...

            Look at it this way. The idea is to get as much movie on a DVD as possible. The people who invented MPEG2 went through a LOT of trouble to squeeze every last bit of performance out of the format. If it were possible to zip an MPEG2 stream to get better compression, that leads to the conslusion: the MPEG2 format was not very good to begin with.

            Of course, it IS possible to get better compression using MPEG4, but that is a special-purpose an
            • If you want to do some more lossy compression on it, an MPEG4 codec like Xvid or Divx is the way to go. A 700MB one CD rip looks about as good as a VHS tape. A 1400MB rip looks pretty damn close to the original DVD. All you need is some free software like Gordian Knot, a powerful CPU, and a lot of time to encode the video.
  • Yes (Score:5, Informative)

    by NickDngr ( 561211 ) on Monday June 06, 2005 @05:09PM (#12739886) Journal
    Yes, you can. [ratdvd.dk]
  • I built one... (Score:5, Interesting)

    by swillden ( 191260 ) * <shawn-ds@willden.org> on Monday June 06, 2005 @05:10PM (#12739905) Journal

    ... and it's great.

    My main reason for wanting to build a DVD jukebox with MythTV was so my kids could watch movies without them destroying their favorite DVDs. It works very well. Even my three year-old can navigate the menus and find the movies he wants without assistance (he insists on it, actually -- gets mad if you do it for him) and without damaging anything.

    As for keeping special features and menus, I don't know. If you have plenty of disk space, just store the raw ISO image and xine and mplayer will do the right thing with it. Theoretically, it shouldn't be too hard to rip all of the titles from the DVD, recompress them all, and then remaster a new, smaller ISO image that still has all of the features. I don't know of anything that does it, though.

    In my case, I really don't *want* the menus. I want a list of movies and when I pick the one I want, I want it to play the movie, period. No waiting two minutes for the funky intro to play through so the menu items appear. No previews. No nothing, just the movie. YMMV, of course. On the rare occasions I do want to watch some of the other features, I pull the disk off the shelf. But I have lots of shelves [willden.org], so that may not work as well for you.

    BTW, in case you're interested, here are the specs on my system:

    • TV: Samsung 50" DLP connected via DVI.
    • MythTV box: Shuttle case with an Sempron 2800+ underclocked to be a Sempron 2000+. Underclocking keeps it cooler, and therefore quieter.
    • Video card: Run-of-the-mill Nvidia FX 5200 with DVI out. $30.
    • Audio card: On-board VIA VT8233 AC97 audio controller with TOSLINK (optical) output.
    • Audio receiver: 600W Yamaha surround sound system connected to PC via TOSLINK input.
    • OS: Debian Sid
    • MythTV software: current versions from Sid.
    • Storage: A file server in another room (Debian Sarge, Athlon 1.4GHz), with four 200GB ATA-133 hard drives in it, each on its own controller, with LVM over RAID-5. Connected to the Myth box via Gigabit ethernet which, for some reason, only gets 100Mbps.
    • Video capture card: None. We don't watch regular TV, haven't for 10+ years. I do download a few programs via Bittorrent, and I may someday get a Hauppage or the like and capture the few programs I want to watch that way instead. Or I may not. Dunno.

    I still need to add an IR receiver and an IR transmitter. The receiver so that I can use a remote control (right now I'm using a wireless keyboard. It works fine, but I still want a more "traditional" remote) and the transmitter so that I can configure the MythTV box to automatically power the TV and audio receiver on and off.

    • Connected to the Myth box via Gigabit ethernet which, for some reason, only gets 100Mbps.

      You know, I've noticed that myself about gig-e. At my last job I was repairing DVRs that had 100b-T and gig-e and I honestly couldn't tell the difference, even with the 100b-T unplugged and the gig-e connected via a 7' crossover cable.

      Pretty disappointing. Even through our old, copper based, fibrechannel hub we still got roughly double 100b-T performance, and that was on an old, ISA based system with 5400 rpm scsi dr
      • At my last job I was repairing DVRs that had 100b-T and gig-e and I honestly couldn't tell the difference, even with the 100b-T unplugged and the gig-e connected via a 7' crossover cable.

        Oh, I can definitely tell the difference on all of my other Gig-E links. But the one to my Myth box (which is a much longer cable, probably 70'), only runs at 100Mbps -- when the network card driver loads it reports a 100Mbps connection, and the switch also shows a 100Mbps connection (yellow light instead of green ligh

      • I run GigE between two Win32 platforms and my Linux fileserver. I still manage to get about 20-40MB (megabytes)/s between the systems when reading or writing to disks over the LAN.

        Using two Intel EEPro1000MT, a NetGear GA302(?) and an el cheapo Fry's special GigE 8-port switch and single drives (no RAID/LVM) on PATA or SATA.
        • I run GigE between two Win32 platforms and my Linux fileserver. I still manage to get about 20-40MB (megabytes)/s between the systems when reading or writing to disks over the LAN.

          Yep, it's kind of funny that your disks are the bottleneck, not the network, isn't it? I realized a while back that with Gig-E (which really is cheap) there's basically no performance difference between local and remote storage. Given that, I'm moving towards centralizing storage as much as possible. I might even make my de

    • Nice ideas man, check out LIRC for Linux Infrared control - transmitting and receiving made really simple using any old remote :) - http://www.lirc.org/ [lirc.org]

      I did it and it's really easy! :)

      Dug
  • try dvd shrink (Score:4, Informative)

    by nri ( 149893 ) on Monday June 06, 2005 @05:21PM (#12740028)
    Compress movies with http://www.dvdshrink.org/what.html [dvdshrink.org]
    • Re:try dvd shrink (Score:4, Informative)

      by gvc ( 167165 ) on Monday June 06, 2005 @06:18PM (#12740761)
      DVD Shrink is a free Windows program that (mostly) works under wine with a little bit of effort. [uwaterloo.ca]

      It lets you delete or retain menus and components, and do (lossy) compression without transcoding.

    • Re:try dvd shrink (Score:2, Informative)

      by Anonymous Coward
      A while back I decided it was time to make backups of my DVD collection so that when my kid wants to watch Pooh, I don't have to worry about him killing the original disc. I have about 40 or so kids discs. My desktop has a 160GB data drive in it, and I figured, cool, good to go. I loaded up dvd shrink and NERO (which enabled DVD Shrink to also burn. Set it and forget it til its done) and set off. I did not bother to delete the discs as I was backing them up, figured I would deal with it when I ran out of s
  • here is how I would imagine doing it:

    1. burn each DVD to an ISO image
    2. mount each ISO image to the filesystem
    3. figure out how to get MythTV to read them and show them in the menu and play them

  • by HotNeedleOfInquiry ( 598897 ) on Monday June 06, 2005 @05:27PM (#12740108)
    A better use for your time will be teaching the little ones how to use the shiny things correctly or not to touch them at all.
    • "Timmy, why did you force daddy's new screwdriver into the DVD player"

      "Because it's shiny"

      As the father of a 1 year old, I can't find out what the modern equivilant of a PB&J-sandwich-in-the-VCR is.
      • a slice of round balogna...
      • I used to have one of those 200-disc Sony CD changers, and the last thing my 2-year-old did before we had to give it away... she took all the CDs out, put them on the floor, and made a merry-go-round for her dolls on the carriage. Then she thought she'd left a black toy in the back, reached in, and pulled the rig that loaded the CDs for playing straight out of the machine. Yeep! One of those "What IS that noise I hear from the other room...? Oh no... no no no...!" moments.

        On a semi-related note, the sa
        • and the last thing my 2-year-old did before we had to give it away...
          You gave her away?!? I know it was a Sony but come on...
          • You gave her away?!? I know it was a Sony but come on..

            Actually, I believe my exact words at the time were: "Okay, that's it, we have to give it away..."
            Wife: "The whole CD changer?"
            Me: "Hell no, the kid. I might be able to fix the changer, but the kid's obviously broken."

            Then my daughter, being the comedian she is, climbs into the garbage can in the kitchen and says she wants to ride in the garbage truck, just to make me feel bad.

            It could be I use the whole "These children are terrible! How's th
            • Actually, I believe my exact words at the time were: "Okay, that's it, we have to give it away..."
              Wife: "The whole CD changer?"
              Me: "Hell no, the kid. I might be able to fix the changer, but the kid's obviously broken."

              Are you familiar with the work of Jeff Vogel [ironycentral.com]?

  • As others will no doubt note, vlc and xine will happily process DVD menus on loopback-mounted copies of ISO images (libDVDCSS will crack them without a drive exchange). I suppose one could NFS-export them over a fast-enough network.
    • I load up uncompressed DVDs on 54Mbit wireless nfs mounts all the time (xine -fs dvd:///path/to/stuff handles it fine) With lirc and a cheap IR receiver (xine will generate an .lircrc) you have it all. I had to manually alter the xine command line in myth way back, but they probably have that covered now. I've also used Freevo and MCE2005 for networked DVDs with no problems.
  • by teksno ( 838560 ) on Monday June 06, 2005 @06:11PM (#12740669)
    well i took on the project of backing up all my DVD's to my media server, and then building a lightweight DVR HTPC...well i found the ultimate in online dvd back up knowledge...

    http://www.doom9.net/ [doom9.net]

    granted most of the software is based for a windows box...but if you go to the forums you can find a section dedicated for mac and *nix users...that should help you alot....

    as far as keeping all the spicial features, its possible, the easiest way, rip to iso, and then mount... but if you want to compress them to mp4, you may lose the little extra vidoe bits (unless you rip those seperatly)...but keeping the extra languages audio tracks and the sub tracks isnt that big of a deal.

    i know the .ogm container supports multi audio track as well as multi sub, and i believe the .mkv container supports all the abouve pluse scene selection...im not 100% sure (as i only rip the main movie in .avi with any forced subs) but if anyone can help...its the fair use freedom fighters over at doom 9
  • I do the exact thing with an X-Box running XBMC (via a softmod.) I use DVD Shrink [dvdshrink.org] to get only the movie and the AC3/DTS sound in English (although my kids loved it when I ripped "The Prisoner of Azkaban" in Spanish.) Much cheaper to set up than a MythTV box and easier too -- just a SAMBA share off of my already existing server. There are also scripts to use XBMC as a MythTV front end, but I've never tried them so I can't comment about them...

    Good luck!
  • DVDRemakePro (Score:1, Informative)

    by Anonymous Coward
    It's a Windows program, but DVDRemakePro allows you to remove stuff like the FBI warning screen, trailers, or any other part you want gone while retaining the menus and extras. It ranks right up there with DVDShrink as the most useful DVD tools I have.
  • by RedDirt ( 3122 ) * on Monday June 06, 2005 @07:53PM (#12741708) Homepage
    I'm sort of doing what you're talking about with the exception of not using MythTV for playback yet since I've not found a DVI flatpanel that I like and can afford yet. *shrug*

    I've got DVD Shrink [dvdshrink.org] installed on all my Windows machines so that when I get a new batch of discs in, I can rip them in parallel. I also strip off CSS and Macrovision at that time so that the resulting set of files on the media server is unencumbered. For playback, I use Media Player Classic [sourceforge.net] (again in Windows) to display the shows although I've verified that vlc and mplayer will also play them. I used to be able to use Apple's DVD player software on a mini, but after upgrading to Tiger and getting the latest version of the DVD player software, it won't let me play off the fileserver anymore (damn the MPAA).

    Be ready to shell out some serious bucks for storage space as not doing transcoding/trimming puts some serious hurt on a pile of drives. I've ripped just shy of 300 discs (297 to be exact) and have eaten 1.6 TB out of my 1.8 TB array.

    My dream is to be able to just pop the disc into a machine and have it rip the contents, decrypt and drop Macrovision and then spit the disc back out but I've not figured out a nice way to do that yet. I also want to add more storage but I've maxed out the current case and cases with lots of drive bays [rackmountpro.com] are quite spendy.
    • Go to emachineshop.com and draw up a drive rack that will hold a powersupply and another 8 drives, and provide some way to attach to the side/bottom/whatever of your current box, add the extra controller(s) to your current box, and just use a slightly long SATA or IDE cable to connect them. Much like the old external SCSI racks.
  • My sister ended up buying a few giant CD wallets. You can condense entire shelves full of media into a small package, easily kept away from wee fingers.

    It will take weeks to rip a big collection, the wallets might be a good stop-gap solution anyhow.
  • With mythtv (and mythdvd/mythvideo), one cannot easily rip -> compress a DVD and keep it as , well, a DVD.

    However, one *can* rip the various video segements of a DVD without any hassle with mythdvd and store them. Eg, the "making of" sections of DVD's.

    You can also select which audio track to rip, although I believe you cannot rip multi-track (that is, standard audio and a commentary track) with the mythdvd ripper. You can rip different versions of a movie with (for example) the directors commentary as
  • by Spoing ( 152917 )
    I haven't tried it with many DVDs, though using something like;

    dd if=/dev/hdc of=~/name_of_movie.iso

    ...should work. Just mount the image instead of the device and use it as you normally would.

    • Doesn't work, due to the CSS protection.

      now, if some smart apple was to make a libdvd(?)-aware version of DD, that would so incredibly rock...
  • checkout http://www.slysoft.com/en/ [slysoft.com] I have used them for a similar purpose. I uuse clonevd2 to rip and save them as an image, in this process you can adjust the quality ect. This paired with virtualclonedrive is sweet, I have all my dvd iso's on my fileserver and with virtualclonedrive installed on my pc i click on the image and it is just as it i put that disk into the the dvd drive.
  • This isn't quite as simple as just ripping the iso image, but it can easily be done. I'm assuming you're running on *nix.

    First, you'll use either vobcopy or dvdbackup to mirror the dvd image to your hard drive decrypting the css. Vobcopy is slightly nicer to use. Ogle can usually play that copied dvd filesystem as is, but I've some trouble with a few dvd's. So, you use 'mkisofs --dvd-video' to create a dvd udf filesystem. Then, you point xine to that udf image as the dvd device, and it works.

    It too
    • This does not copy the title keys or disk key since that is only available via the DVDROM drive key exchange mechanism. So, you're not copying the whole DVD.

      You don't need to decrypt, either: libdvdread, if it finds libdvdcss will use it to crack the iso image (which, IIRC, has to be an image because the sector number matter in decrypting, thought that might only be the case with a non-brute force decrypt) as necesary at run-time, and cache the resulting keys for next time.

      Now, IIRC, one can build libd

      • From the vobcopy website [rnbhq.org]:
        vobcopy copies DVD .vob files to harddisk, decrypting (if you have libdvdcss installed) them on the way (thanks to libdvdread and libdvdcss)

        So maybe I misspoke. You don't get a perfect copy. You get a decrypted version of all content on the DVD, which is really what you probably want and is easier to use anyway.

        I've backed up my dvd's via this method. It works and without loss from transcoding. And after the initial copy, there's no need to screw with any bs css crap. Thi
        • We have different goals.

          I actually do/ want to do CSS as late as possible in the copy/playback chain, ideally at the playback client, for the reasons I mentioned. In fact, I'd prefer a stronger cryptosystem for that purpose.

          In my case I am concerned about being charged with contributory copyright infringment through neglect by leaving unencrypted copies on a home network that is connected to the internat at large (albeit via a dedicated firewall). If someone hacks in and copies off video with CSS intac

  • 1. Limited storage space
    2. small, inquisitive fingers

    Solution:
    A couple of 128 CD cases, on a shelf. Cheap, fast access, more secure than a hard drive, portable. Not as geeky as a mythtv solution, but sometimes simple is best.

    DVDShrink + DVDDecrypter (get it NOW) can preserve as much or as little of the original as you want. Netflix + DVDShrink is addictive.

  • I like commentary tracks, but I generally don't care about other "special features".

    I use DVD::Rip, which supports multiple tracks. I use ffmpeg mpeg4 and ogg vorbis for the audio. Sometimes I use the AC3 passthrough for the main audio, and vorbis for commentary, depending on how much space I'm willing to use.

    -Peter
  • Just thought I'd throw in that I did pretty much what was asked, though I'll leave you with one missing link if you want an all-linux solution. I had several mythtv frontends all pulling movie files (a mix of downloaded and ripped) off a central nfs store.
    The nice thing many people don't realize about xine is that there is no need to mount images, deal with loop, cloop etc or anything like that. a simple "xine image.iso" will play the movie just as if it was in a drive.
    Unfortunately, I have ye
  • DVD Jukeboxes are a great idea for a shared house. I set one up when I was at Uni in 2000 sharing a house with 5 people, using a geforce 2 with tv out and an RF Mouse (the living room was in the attic and the room with the system in was directly below). This worked fantastic as I had not only the 80+ DVDs on my system but access to everyone elses DVD's over the house network. The only problem was that even with 6 PCs going at it it still took each one 30-40 minutes to rip the DVD then another 10 hours to sh

It's a naive, domestic operating system without any breeding, but I think you'll be amused by its presumption.

Working...