Members Jeff Leites Posted September 19, 2007 Members Share Posted September 19, 2007 I just received a DVD of a show that I had a small part in, and I was going to ask how do you play a DVD on your computer? But I figured it out. Now I'm just wondering what all these files are. The tree structure looks like this: NVE_DVD(D:)........VIDEO_TS............... VIDEO_TS.BUP............... VIDEO_TS.IFO................VIDEO_TS.VOB................VTS_01_.BUP................VTS_01.0.IFO ................VTS_01.1.VOB................VTS_01_2.VOB................VTS_01_3.VOB From what I can figure out, the .VOB files seem to contain the program material. The .IFO is some kind of control file. Clicking on the .IFO gets the program started. Anyone know what these are? Link to comment Share on other sites More sharing options...
Members Dean Roddey Posted September 19, 2007 Members Share Posted September 19, 2007 The BUPs are 'backup' files, i.e. backup copies of the IFOs in case they get corrupted. The IFOs are information files and they contain all the information about the menus, images, chapters, titles, etc... and where they are on the disc. The VOBs are I guess Video Objects that contain the actual video/audio data. The IFO files point to the chapters and other info inside the VOBs. Link to comment Share on other sites More sharing options...
Members Jeff Leites Posted September 20, 2007 Author Members Share Posted September 20, 2007 Thanks! Link to comment Share on other sites More sharing options...
Members TimOBrien Posted September 21, 2007 Members Share Posted September 21, 2007 .vob files are MPEG2 files. If it is not a commercially copy-protected disk, you can try just moving the .vob's to your hard drive and renaming them *.mpg --- then they should play... Link to comment Share on other sites More sharing options...
Members Dean Roddey Posted September 21, 2007 Members Share Posted September 21, 2007 Well, they contain MPEG2 data, but they aren't strictly just MPEG2 files I don't think? I've written an IFO parser for our product and the way the data is actually layed out is pretty complex, and has to deal with alternate versions and all that. The IFO files have a set of tables that define what chunks of data in which VOB files make up a given version of the movie, and that info can be spread out in various ways. Each of those chunks would be a valid chunk of MPEG2 data, but if you just tried to feed the VOB to a player that didn't understand the IFO files, i.e. just as a raw MPEG2 file, it probably would choke I'm guessing? Link to comment Share on other sites More sharing options...
Members alphajerk Posted September 21, 2007 Members Share Posted September 21, 2007 VOBs can be renamed to MPGs and played, but limited to 1GB so a DVD can have like 5 of them if needed. you would have to stitch them together to watch it in whole. Link to comment Share on other sites More sharing options...
Members Jeff Leites Posted September 21, 2007 Author Members Share Posted September 21, 2007 I see that the .VOB files come up as MPEG files under the "Type" heading in explorer. I was going to try moving one to my HD, but they are way to big to experiment with. Besides, the guy that made the video already put my performance on YouTube Link to comment Share on other sites More sharing options...
Members alphajerk Posted September 21, 2007 Members Share Posted September 21, 2007 they should only be 1GB each. Link to comment Share on other sites More sharing options...
Members Jeff Leites Posted September 21, 2007 Author Members Share Posted September 21, 2007 they should only be 1GB each. Yes they are, but being an old guy who got started in computers that had 4k of (real magnetic core) memory, I think of 1 gig as huge Link to comment Share on other sites More sharing options...
Recommended Posts
Archived
This topic is now archived and is closed to further replies.