That would only make the first CD problematic, not the second. Re-burning the CDs and having no problems afterwards, suggests a high burning speed the first time, or maybe some (compensated) buffer underruns that although are ok for data CDs, are murder for audio CDs or as in our case SVCDs. BTW, there are 2 and 3 CDs Jewel cases, so you can safely store your SVCDs.