Same problem here with the internal dvd rom drive (LG DVD lg gdr8161b). Reinstalling is not a solution.
I've tried installing some aspi layers, starting with the adaptec 4.71.2. Again, no solution.
Plays cd if use digital playback is NOT ticked, but no ripping.
No problem with a firewire CD writer.
The problem is not totally media center specific. Winamp plays and rips without problem. EAC works with internal DVD with aspi layer and with external firewire cd writer using native nt drivers. itunes, as media center, only works with firewire unit.
Media Center Registered 10.0.64 -- E:\Archivos de programa\J River\Media Center\
Microsoft Windows XP 5.1 (Build 2600)
Intel Pentium 4 2398 MHz MMX / Memory: Total - 523 MB, Free - 272 MB
Internet Explorer: 6.0.2600.0000 / ComCtl32.dll: 5.82 (xpclient.010817-1148) / Shlwapi.dll: 6.00.2730.1200 / Shell32.dll: 6.00.2600.115 (xpclnt_qfe.021108-2107) / wnaspi32.dll: 4.71 (0002) , ASPI for Win32 DLL, Copyright © 1989-2002 Adaptec, Inc. / Aspi32.sys: 4.71 (0002)
Ripping / Drive F: Copy mode:Normal CD Type:Auto Read speed:Max
Digital playback: Yes / Use YADB: Yes / Get cover art: No / Calc replay gain: Yes / Copy volume: 32767
Eject after ripping: No / Play sound after ripping: No
Burning / No burners found.
Test mode: No / Eject after writing: Yes / Direct decoding: Yes / Write CD-Text: No
Use playback settings: No / Normalization: None