DVD Video File Structure

Hi,

Can anyone help explain the file structure on a DVD Video? The files seem to be stored in a VIDEO_TS folder inside which is a mixture of VOB, IFO and BUP files. I assume one type of file forms the Menus, the VOB files I assume are the MPEG2 files but can anyone supply any information on what is what (or point to a website where this is explained).

Thank you.

 

You'll find that all the images (or video) that go to make up the menu's are within the VOB files along with the movie and any extras.

No idea what the other files are used for. It might have something to do with chapter stop times etc..

 

Thanks for replying - as is normal I discover what I'm looking for a few seconds after posting the message. As you say the key file is the .VOB - the .IFO is the Manager Information file and .BUP is it's backup.

I'm getting a DVD-RAM drive for my PC in the next few days which (hopefully) will allow me to convert my recordings on the DMRE20 (on RAM disks) onto DVD-R. Follow the advice of a previous post and some background reading I believe I can use TPMG Encoder and Spruceup to extract and convert the data into DVD Video format which can then be burnt to a DVD-R.

 

http://www.disctronics.co.uk/technology/dvdvideo/dvdvid_struct.htm

http://www.disctronics.co.uk/downloads/downloads_dvd.htm

There is a logical structure (titles, programs,etc) and a physical structure (files and folders on the disk).

Incidentally, DVD-Audio has a similar structure, but the word "video" is replaced with the word "audio", so you end up with Audio Title Sets (ATSs), Audio Objects (AOBs), Audio Object Sets (AOBSs) and Audio Object Units (AOBUs).

 

http://www.vcdhelp.com/

http://www.dvdripguides.com/

 

I have both Panasonic DMR-E20 and LF-D311. Here are
my steps:

1. record to dvd-ram using DMR-E20
2. demux the VRO to m2v and ac3
3. use a dvd authoring software to import m2v and ac3
4. add menus or chapters
5. burn to dvd-r using LF-D311

 

David - what software do you use to demux the VRO? I am using renaming the .VRO into an .MPG and using TMGEncoder to demux into video & audio but 2 out of 3 times the audio has slipped out of sync?

 

I use DVD Wise which is the fastest software I've ever
used to demux the VRO or VOB. However, I don't use it
for authoring.