geno888 Posted December 15, 2008 Share Posted December 15, 2008 Hi I just found something that confused me. I have no idea if it is a bug or I did something wrong To explain better, I'll report the exact sequence of what I did. 1) I created a data disc with ImgBurn in Build mode and I saved it as ISO file on HDD. (As can you see in the log, I used version 2.4.1.0 when I created the ISO, because that was the version installed in the computer when I created the ISO) 2) I used Dvdisaster to add parity data to the ISO image. 3) I burned the "parity-containing" ISO with ImgBurn in write mode (again with version 2.4.1.0). 4) I then used ImgBurn (this time I used latest version, 2.4.2.0) in read mode to create an ISO from the burned DVD. 5) I was curious to check if also parity data was ripped in the ISO so I tested the ISO with Dvdisaster, and I got the following errors (see the picture). If more details are needed, let me know. The disc contains only data, not a movie (and AnyDVD or similar software were not running in the background when I created the ISO in Read mode). Can I assume that the ripped ISO contains the same files of the disc? If I want to do a copy of that disc can I burn the ISO safely or I should copy all files from the disc to HDD with Windows explorer and then burn them again with ImgBurn in build mode on a different disc? The log file of ImgBurn is the following. I 17:07:09 ImgBurn Version 2.4.2.0 started!I 17:07:09 Microsoft Windows XP Professional (5.1, Build 2600 : Service Pack 2)I 17:07:09 Total Physical Memory: 1.048.044 KB - Available: 507.900 KBI 17:07:09 Initialising SPTI...I 17:07:09 Searching for SCSI / ATAPI devices...I 17:07:10 Found 1 DVD Link to comment Share on other sites More sharing options...
mmalves Posted December 15, 2008 Share Posted December 15, 2008 The burner does that for some reason, even ImgBurn had to implement a workaround: Added: An alternative 'Padded' MD5 calculation for when burning + verifying an image on DVD+R media where the drive automatically pads the image so the last sector is divisible by 16. On another note... I 17:08:26 Source Device: [0:1:0] LITE-ON DVDRW LH-20A1P KL0N (D:) (ATA) There's firmware KL0P available for your burner Link to comment Share on other sites More sharing options...
geno888 Posted December 15, 2008 Author Share Posted December 15, 2008 Hi Thanks for the quick answer So do you think that I can use the ISO created in Read mode to make a 1:1 copy of that disc? Or it is safer to copy files with Windows explorer and then create another disc in Build mode? Oops... I missed the new firmware... Actually I use that drive for reading only, very rarely to burn a disc Link to comment Share on other sites More sharing options...
mmalves Posted December 16, 2008 Share Posted December 16, 2008 Both ways should give the same result. Did you compare the data on the disc against the source data to see if they match? If those are real Verbatim blanks I wouldn't bother with dvdisaster at all Link to comment Share on other sites More sharing options...
geno888 Posted December 16, 2008 Author Share Posted December 16, 2008 Hi and thanks again for quick answer I just completed a test. The verification against ISO image file gave no errors, so I think that it's safe to burn the ISO I already use Verbatim and Taiyo Yuden discs for my important data. I was using dvdisaster because I was curious about this tool Link to comment Share on other sites More sharing options...
Recommended Posts