[osxrules]

I was waiting for this to be part of Tiger so that I could finally mount my Panasonic DVD-Ram discs from my video recorder. I put the disc in my drive with my fingers crossed and it actually mounted. The mounted drive was called MEI_UDF - the name I discovered via toast in Panther. On browsing the disc, I saw 3 files in a folder named DVD_RTAV. The files were called VR_MANGR.BUP, VR_MANGR.IFO and VR_MOVIE.VRO.

But despite having the mpeg-2 quicktime component, I just keep getting IO errors and apps quitting when I try to open the VRO file in things like Video Lan Client, Quicktime and streamclip. When I try copying the VRO to my hard drive I get an error code -50 unexpected error occurred. It's not the disc because I can copy the .BUP and .IFO files to my hard drive no problem.

Maybe I'll just need to get ReadDVD after all. Does anyone know if it's Tiger compatible or does anyone know how to get the movie files to work? I also tried saving it as a disk image and mounting it but I got the same errors that the apps couldn't read the VRO file.

Another odd thing is that despite the fact it is a DVD-RAM disc, disk utility says it's locked so I can't write to it either. I can't even erase it because the buttons are blanked out. To use my DVD-Ram discs before, I erased them in toast first and then formatted with Disk Utility but it means that Apple still don't allow writing to UDF by default or formatting them.

[davemchine]

I am having the same problem, BUT I do have READDVD. So I would not recommend buying it to solve this problem. I have an email sent off to tech support to see what the issue is.

Dave

[osxrules]

I think the problem may be that the video is encrypted just like a commercial DVD. But I get a permissions error if I try to copy VOB files right off a commercial DVD not error code -50. The ones that wouldn't be encrypted (IFO, BUP) copy fine. None of the DVD rippers want to look at the DVD-Ram discs though and those that can rip files only support those with a VOB extension not VRO.

Thanks for the info about ReadDVD, I was thinking about buying it for Panther when the DVD-Ram discs wouldn't even mount but if it doesn't work then there's no point.

[s0ulg]

Hi there,

I think that your problem is not with file encryption or copy-protection, but with file SIZE. It has been reported that files > 2 GB won't be read by OS X (Tiger) on UDF 2.x discs. Tiger only supports the UDF 1.5 standard. ReadDVD could solve your problem for you (supports 2.x) but it isn't currently functional under Tiger.

I've been trying to facilitate a discussion about this problem and any possible solution(s) over at the apple discussion forums. There is a lot of information on this topic in this thread:

http://discussions.info.apple.com/we...7373@.68af0b24

[osxrules]

Thanks for the link s0ulg. I don't think size is just the problem though. I've tried files less than 2GB and get the same error.

[arekkusu]

Is it bigger than 1 gig? UDF is supposed to support files up to 2 gigs on a DVD-data disc, but it has never worked with files larger than 1 gig in OS X.

OS 9 worked with files larger than 1 gig.

[osxrules]

Nope, I tried it with files that were only a few MB in size. When I check the system log, it says:

SAM Multimedia: READ or WRITE failed, ASC =0x6f, ASCQ = 0X03
disk1: privilege violation
udf_read: error 13

I get a permissions error if I try to copy VOBs from an encrypted DVD so maybe the DVD recorder manufacturer puts some encryption on it. I read on a site about dvd recorders:

"All dvd recorders are encrypted by a copy-protection format that will prevent you from recording copyrighted movies."

http://www.220-electronics.com/dvdre.../dmr-e100.html

but that could mean it doesn't let you feed a DVD into it and copy it. I don't think that should affect TV shows unless they are sending out a signal to encrypt the content.

Has anyone tried to copy files from a camcorder that records straight to DVD? I heard that was the same format and it really shouldn't encrypt that.

[Heffe]

The problem is that the file is showing up as a named pipe.

[FONT=Courier New]$ ls -l /Volumes/MEI_UDF/DVD_RTAV/
total 4412928
-rwxrwxrwx 1 heffe heffe 26840 Jun 12 02:59 VR_MANGR.BUP
-rwxrwxrwx 1 heffe heffe 26840 Jun 12 02:59 VR_MANGR.IFO
prwxrwxrwx 1 heffe heffe 2259230720 Jun 12 02:11 VR_MOVIE.VRO[/FONT]

I suspect that's a problem with the MAC UDF filesystem driver. It's probably not because of copy protection. A better UDF filesystem may work. If someone has DVDRead from Software Architects http://www.softarch.com/ it'd be really nice to know if it works with their driver.

We may have to wait awhile for Apple to fix the UDF driver.

[osxrules]

Yeah, that's what someone said over at the apple discussion thread too. Seems odd that just the one filetype is being read as a pipe and not the others.

Has anyone tried the pixela browser?

http://www.videohelp.com/forum/archive/t264339.html