Problem converting more than one file

I’ve converted/burned single files (700mb+). However when I try to convert more than one file (size between 50 and 250mb)… the program (ConvertXtoDVD) will work for a bit but eventually fail and give me this error message.

Access violation at address 7C910E03 in module ‘ntdll.dll’. Write of address 82828

Thanks in advance for any help/suggestions.

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