What's new/fixed:
- added XBMP iso9660 reader for dumping ISO CDs (thanks to XBMP) (a lot of CDs doesn't work but don't ask me why because the code is almost 1:1 taken from XBMP)
- added standard VCD and SVCD to media detection (both dumped via XBMP iso code. same limitations than above)
- Video DVD / XBOX DVD media size calculation now based on counting each file (thanks to BenJeremy) (takes a little bit longer but is much more accurate than GetDiskFreeSpaceEx)
- only display warning if DVD media size is greater than free space
- set UDF dump mode as default to try dumping if media detection fails