I have a lot of concerts that I tivo'ed and wanted to just keep certain songs. Ive seen a lot of posts on programs that will convert a Tivo file to a usuable one for editing out parts that you don't want. They all seemed a little hard to use from reading the posts about them. So I looked around and for $29 I bought a program from Roxio called Video Copy and Convert 5. Turns out it will convert a .tivo file to a lot of different formats while removing the wrapper. I selected the WMV format. This allowed me to edit it in Windows Movie Maker and then save it as a MPEG4 file that I transferred back to the Tivo. I couldn't get it to fill the whole screen but it fills about 80% of it.