CD-Rs on XBOX

[vegitto]

Guys,

My XBOX could not read some of the CD-R, I heard that most of XBOX doesnt read CD-R is it true??

if it is, but how come my XBOX could read some of the CD-R but doesnt read some of the others, any disk that I purchased could be detected and I believe there use dodgy one, but if I burn by myself it doesnt seem to work...

I am asking this question because if XBOX doesnt read CD-R how they can read some of my CD-Rs and can read CD music which I believe they use CD-R, is it azimuth problem that XBOX set it up differently or laser intensity, or any specific brand that can be used, etc..., Please help me, experts!!

Cheers