Francois Gouget asked:
Are there tests that are impossible if there is a CD in the drive?
Some tests combinations. I believe Dan's tests want a DVD, whereas mcicda expects audio CD-ROMs. Either you play disk jockey while running the tests, or some tests will be skipped.
Note that mcicda will skip some tests unless you use a mixed audio+data CD-ROM. Few people have those. An audio only CD-ROM will not run all tests.
The mcicda testsuite is known to skip correctly when no disk or a DVD is inserted. Anything else is a regression.
Regards, Jörg Höhle