The sleep timer (1.0.6) for media center still refers to MC as Media Jukebox in the pull down menus....and on my windows XP, the shutting down the computer feature does not work after the specified time.
Media Center Registered 9.1.315 -- C:\Program Files\J River\Media Center\
Microsoft Windows XP Workstation 5.1 Service Pack 1 (Build 2600)
Intel Pentium III 1096 MHz MMX / Memory: Total - 523 MB, Free - 235 MB
Internet Explorer: 6.0.2800.1106 / ComCtl32.dll: 5.82 (xpsp1.020828-1920) / Shlwapi.dll: 6.00.2800.1276 / Shell32.dll: 6.00.2800.1233 (xpsp2.030604-1804) / wnaspi32.dll: N/A
Ripping / Drive E: 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 / Drive E: MATSHITA UJDA710 Addr: 2:0:0 Speed:1 MaxSpeed:1 BurnProof:No
Test mode: No / Eject after writing: No / Direct decoding: No / Write CD-Text: Yes
Use playback settings: No / Normalization: None