Hi,
I tried this with
gomusic and I got an error 503 message for each file after I hit the start button. None of the files would download.
Here is the fix:
Goto Preferences in the Downthemall window (bottom right)
Advanced
Multipart download
max chunks' number per download: 1(Disabled)
My max chunks was set at 5 originally. Once set to 1 it worked great.
Thanks for turning me on to this addon. Great stuff!