I have a quick question for you pearl experts:

After deleting the predefined ring tones, pictures and video, it leaves the file name behind and shows the file as 0.00 kb or whatever it is. Is there any detailed explanation on how to delete these without bricking the phone or doing any significant harm? TIA

Wirelessly posted (BB 8100: BlackBerry8100/4.2.1 Profile/MIDP-2.0 Configuration/CLDC-1.1 VendorID/102)

I don't think so, although in the application loader, you can choose to remove the sample video.