3rd party conversion for sansa fuze, solution for LAG and perhaps for linux users
Seems the news hasn't reached ABI yet (or I'm looking with my nose, which is just as possible), but anyway: There is a program called Winavi which can be used to create files that can be played on the fuze. Is is not free, alas, but it does work.
From the standard settings to encode to AVI just make sure resolution (224x176) and fps (20) are changed to the correct values, and go. After encoding just drag and drop the files to your sansa.
No more lag, and perhaps it works on wine (haven't tested that).