[i]Originally posted by wcphil [/i]
[B]After installing new Atapi Cd-Rw my Matshita DVd Rom freezes system when I insert a audio disc, it reads data discs and DVDs and works ok with these. [/B]
This reads like you have tried data & dvd DISCS, and a single audio disc, this must be a mistake and you have tried more than 1 ( is it dcr, dvdr, original).
How are your devices set up (slave, master, channel),