IDM is an unregistered trial version, and does not allow prioritization of downloads, whereas FDM is freeware, and allows 5 levels of priority, which can be changed on the fly.

FDM does not automatically show the file size - you have to manually request this - IDM shows all file sizes automatically.

With the site grabbing feature, FDM allows you to allow the small files to be grabbed first via the priority feature.

However, IDM allowed me to get GBs stuff easier and faster than from other MySpace sites I have been at!

Now I can say that I do like the songs!

Hope these comparisons are useful to others of you too!