Help recovering XCD films.

[#2]

I'm trying to save my old rips that I burn't on to CD-R's in Mode2 Form2. I've tryed drag'n'drop, dat2file, nero with ignore errors and 'DriveSpeed' set to min. cdrdao from the command line, cdCheck, cdRoller and IsoBuster. EAC won't have a bar of the data file (wont even create an img even though the error correction structure is the same as an audio cd) each time I do everything twice and each .bin .nrg .dat or .mkv gives me 2 different md5s.

Has any one got any kind sugestions. I really don't want to redo 150 films. :(

[jkwarras]

Sorry, I dont' understand. Are you triying to get the files fromt eh XCD to the HDD? You just have then to drag & drop to the HDD and then use a tool called dat2file. It'll convert your files back to what it was (be sure to know exactly what was the previous file format i.e. avi, mkv, ogm because you have to specify it).

Hope it helps.

[bond]

try xcdextractor (http://forum.doom9.org/showthread.php?s=&threadid=77946) and the other tools mentioned in the xcd faq under q13

[#2]

Thanks Guys. I'm sorry if it wasn't that clear but as I mentioned I have used dat2file & drag'n'drop and each time get a different md5 hash. ie drag'n'drop -> rename -> drag'n'drop to same folder -> create md5 sums = always different. I get the same sad result for all the other processes I've tryed.

What's worse is that I did quality check on all of these CD-R after I burned them and they were all OK. Now many are boorked and some are only 4 months old. I've kept them away from heat and sun.

Any way now I need to find a process to securely extract all these encodes to my HDD.

[bond]

did you try xcdextractor?

also read the xcd faq, the checksums are likely to be different between source and the m2f2 file, as zeros get added to the end of the file (and can be removed with xcdextractor)

[#2]

Cheers bond.

I have tryed xcdextractor and I thoughally read the FAQ back when I first started burning all my rips in M2F2.

I'm not talking about different hash sums between the original source and an extracted media stream from an X-CD. I'm refering to the different hashes I get from two unique extractions of the same CD-R. ie drag'n'drop -> rename -> drag'n'drop to same folder -> create md5 sums = always different. Again replace drag'n'drop with dat2file, nero with ignore errors and 'DriveSpeed' set to min. cdrdao from the command line, cdCheck, cdRoller and IsoBuster while the only extraction program that I really trust, EAC, won't have a bar of the .dat file.

CdCheck comes closest to a secure extraction slowing down re-reading and eventually giveing errors rather than, I guess, useing C2 to interpolate and giveing a best bet but not bit accurate output file that all the other tools seem to do.

I've tryed this on 3 different drives. And I am still looking at 150 films that I may have to re-encode and 150 X-CD CD-Rs that I may have to throw away.

[jkwarras]

Originally posted by #2
What's worse is that I did quality check on all of these CD-R after I burned them and they were all OK. Now many are boorked and some are only 4 months old. I've kept them away from heat and sun.

Wow, you're freaking me out. I've almost all my backups as XCDs. I've never encounter any problem, only one movie didn't want to play at the very end of the CD. I don't think that XCDs are less secure than Audio-CDs if you keep them in their case and treat them carefuly. But I will like nevertheless to do quality check myself, how do you exactly perform your quality test on already burned XCDs?

[r0cket]

#2
There may be different checksums if your XCD's got corrupted. If you extract ignoring errors there's no guarantee of identical results. If you are sure your discs are OK, try another drive. Sometimes it helps ;)

[#2]

Originally posted by jkwarras
Wow, you're freaking me out. I've almost all my backups as XCDs.

As you may have guessed i'm a little freeked out here my self. :eek: The reason I'm posting this is so that we can come up with a secure extraction method for partially boorked XCDs so that others won't have to feel my grief.

I'm interested to hear if others get different hashes from two identical extractions.

Heres a link to an easy to use MD5 creator hkSFV http://www.big-o-software.com/

Install hkSFV
Make dir
xcdextractor to dir
rename output file
repeat xcdextractor to dir
right click on dir -> hkSFV -> Create MD5
right click on created flie (you may have to hit F5 to see it) -> Open with Notepad
Compare MD5s

NOTE: You may want to uncheck 'Tools' -> 'Use Cached Results' in hkSFV if you are doing multipul checks on files with the same name.

Forgive me if I just stated the blatently obvious to any one.

Originally posted by jkwarras
I don't think that XCDs are less secure than Audio-CDs if you keep them in their case and treat them carefuly

No but XCD CD-Rs cirtainly maybe.

For the Quality check;

Nero Toolkit -> Nero CD-DVD Speed -> Extra -> Disc Quality Test & Scan Disc

Originally posted by r0cket
try another drive. Sometimes it helps ;)

Originally posted by #2
I've tryed this on 3 different drives. ;)

They inclued BCE4012, BCT316c (lastest firmware) and Liteon SOHW 832S/Sony DRU 700A (Omipatched firmware)

What I would really like to do is find some way to trick EAC into thinking that this is actually an Audio CD and useing its Secure Mode with disabled cache and no C2 error "correction".

[#2]

Any one else had different MD5s? Or is it just me?