Hi, The kernel is kernel-2.6.13-1.1526_FC4. I ripped one CD successfully using grip, but a second one caused the system to lock up. I figured out that switching off dma for the CD-ROM drive solves the problem. Of course system load is the affected negatively. I never had this problem with FC3 and before. Does anyone experience similar problems? The drive is a Plextor PX716A. -- Gérard Milmeister Langackerstrasse 49 CH-8057 Zürich