i think this problem has to do with a thing called cyclic redundancy check, i am currently reading up to understand what it is, if it can be avoided, and how. Will post an update!

UPDATE (from http://www.softwarepatch.com/tips/cy...edundancy.html)

[A] common cause of these errors is poorly burnt CDs and DVDs - especially those that had numerous or severe buffer underuns. USB burners suffer from this problem when the burn speed is too high (generally above 4X-8X)


If the discs are damaged, you'll probably need a recovery tool to get back your data. CDCheck 3 will work for CDs and DVDs. First it will check the media, and then you have the option to recover the files. It's free for personal use and has saved many people heartache when it comes to recovering lost digital images and videos from damaged CDs.