Stumped on dvd-r ripping (new way of hiding files?)

[scottvf]

I bought some billiard matches on ebay. They are dvd-r and I have one that I can't figure out.
I rip all my dvd's using dvd Decrypter and when I put it in I can only see some of the files

VIDEO_TS.BUP
VIDEO_TS.IFO
VIDEO_TS.VOB
VTS_01_0.BUP
VTS_01_0.IFO
VTS_01_1.VOB 114,407,424

Above it all it shows. I know thats not right because it's 2 hours long and plays fine on my dvd player. How are the files being hidden?
my windows explorer shows only 109 mb for the dvd but I can copy it with nero as an image and it shows 4.2 gb for the image. Since I can copy it that way I know it's not copy protected. But I wanted to reauthor it with tmpgenc dvd author because whoever made it made a lame menu. (just a box you click on).

Anybody know about how to work around this?

[guns1inger]

Open it in DVD Decrypter and demux it to your HDD, then reauthor

[psx_pirate]

Use the image you created on your hdd .... (download daemon tools) and mount the image in daemon tools and then drag the files from the virtual dvd that you see in the daemon tools virtual drive

[machf]

That's a really old protection scheme, fiddling with the tables that store the filesize info. I remember it back from my Atari 800XL days, more than 20 years ago, with the VTOC (Volume Table Of Contents, similar to the FAT) stored on sector 360 and the directory entries following from 361 to 368... and it may be older than that. It will prevent you from copying the files, but not from playing the disc. Sorry, mounting a virtual DVD won't make any difference, you still won't be able to copy the files. What you need to do is rewrite the file data. I imagine that could be done by tracing each file on the disc and determining its actual size, then writing back that info to the disc. Can Daemon Tools mount a virtual DVD and not make it read-only? Or would you have to work on the ISO file directly? In the old times, on diskettes, you could use a sector editor to do that - or a custom-written program that could read and write sectors to the disc. Some DVD-analogue to that is what is needed.
Some local pirates are using a similar scheme with CD-Rs of compilations of software downloaded from the Internet. Which is annoying, as some installers will check for the filesize and report the file as corrupt if it isn't right, aborting the installation process. And those are programs freely available for download, not warez or anything. Even more annoying...