Hello Everyone

I am relatively a newbie using Limewire and the whole P2P networking concept for that matter.

My questions are:

a) Whenever I am d/l mp3 files my bandwidth speed most of the time is in the range of 10 - 50 KBps (downloading from 3 - 6 hosts)

and yet;

b) when d/l avi files I can only get 1 - 12 KBps (downloading from 3 - 6 hosts).

Why such great discrepancies between mp3 and avi files?

I am using Limewire v. 4.8.1
Java v. 1.5.0_04
Type of Internet Connection: Wi-Fi (which is equivalent to Cable/Dsl, I guess)

Limewire is in default configurations.

Thank you.

P.S.

Is there any harm that may come to my computer if I leave Limewire running all day and night?, which I often do so I can finish d/l those large avi files.