Er, don't try huffyuv or lagarith if you want small files - these will give you videos several 10s of GBs in size for your 8 minute video, since they're lossless codecs Use xvid or divx with sensible compression options - you could try h264 too since that's even more superior at decent quality at small file sizes, but even I don't know how to use the more advanced stuff of that one properly yet since I've not had time to play with that one