講的轉檔是指DVD=>avi嗎？
那麼若使用的Codec是XviD 1.2以後就可以提供多執行緒的支援了！

Changes in XviD 1.2 [25.02.2006] :
- {core}: Trellis improvements (according to sysKin).
- {core}: New experimental SMP support.
- On uniprocessor machines set number of threads to 0!

Changes in XviD 1.1.0 final :
- {core}: Field interlaced decoding.
- {dshow}: Additional fourcc support.
- {vfw}: Small updates.

或是直接採用AutoGK這套程式（從自2.27版採用新版Xvid就可以獲得支援）：
2.35 beta
- fixed re-encoding of AVI sources with MP3 sound
- preview now correctly adjusts audio delay after demuxing
- LAME updated to version 3.97
2.34 beta
- fixed crash in vstrip.dll when opening some IFOs
- added detection of multiple logical CPUs to be set as number of threads for XviD encoder
- MediaInfo updated to version 0.7.3.1
2.33 beta
- fixed bug when subtitle selection was ignored during loading of second and more jobs
- added audio to the preview from non-avi sources that can be used to identify correct audio stream and detect audio sync issues
2.31 beta
- fixed bug during restoring of advanced settings
- fixed bug when advanced audio setting (CTRL-F11) were ignored
- updated log file/window with more custom audio info
2.30 beta
- updated XviD SMP build to 12/07/06
- DGIndex is updated to 1.4.8
- audio/subs options completely redone: now its possible to select any number of audio/subs streams. To bring advanced audio options window press CTRL-F11
2.27
- fixed compatibility with DivX 6.1.x
- quality based mode respects DXN HT profiles when DivX 6.1.x is used
- XviD 1.2 SMP build of 28/02/06 is bundled
- DGIndex 1.4.6 is bundled
- ColorMatrix.dll is updated to version 1.10