well the best flv to mp4 converter i've found was
media-convert.comit converts several different file types. and its only online so no need to install anything
but you need to find the link to the flv directly for it to work. for that i use
Firefox and the
Unplug Add-onjust copy and paste the flv video link that Unplug gives you.
i've had better luck converting with youtube videos though because youtube has faster servers
but you can always try myspace videos. if they don't work using the link i advise
download the flv file (don't worry no virus) then on
media-convert.combrowse and upload the flv.
I've found it easy to use and it might take a little getting used to but its the best converter i've found
it shows you the progress of the conversion. and takes a few minutes. it also has the feature to only convert
a certain part of the video.