Hmm płyta płycie nie równa, ale to dziwne skoro wszystko działa na wyzszych predkosciach ... 
Jaką masz wersje biosu/firmware'u w tym napedzie ? bo moze upgrade rozwiaze sprawe ... 
Changelog
Kod:
< F/W 1.13 -> 1.14 >
· Support to some of Variable Packet Application.
· Support to new specification of InCD Ver 4.0.7.2 or later.
< F/W 1.09 -> 1.13 >
· Some CD-R/RW media write performance is to be improved.
· The read speed of the CD-RW is to be improved from 32X speed to 40X speed.
< F/W 1.05 -> 1.09 >
· Optimize Servo and Write Speed to improve Write functionality
· Improve Write performance and minimum write speed while creating multi-session
LINK - http://www.teac.co.jp/dspd/download/...e/explain.html