K got another question for you geniueses. My father has a BlackBerry Pearl 8100 and would like to put mp3's on his phone via the 2 gb mem stick that he bought for it. I plugged in the usb to phone and computer. Computer see the removable drive. Tryed the drag and drop method and I doesn't work. File wont even transfer to the BB. From what i hear it is an ongoing problem with BB pearl users. I would really like to be able to help him out cuz he does so much for me so if you have any answers for my question i would and always do greatly appriciate the help that is offered
Honestly don't have much experience with the BlackBerry but did some search on their site and found some potentially useful information.

Using BlackBerry Desktop Manager

Note: BlackBerry Desktop Manager 4.2 must be installed on the computer.

1. In BlackBerry Desktop Manager, open BlackBerry Media Manager.
2. Use BlackBerry Media Manager to transfer the audio or video file to the BlackBerry smartphone via a Universal Serial Bus (USB) connection.
3. Copy the FILES to the appropriate folder (either \blackberry\Music or \blackberry\Video) on the media card, or directly to the internal BlackBerry smartphone memory.

Note: Files larger than 3 MB cannot be transferred to internal BlackBerry smartphone memory.

Using the BlackBerry smartphone as a USB mass storage device

1. On the BlackBerry smartphone, go to Options > Advanced Options > Media Card.
2. Make sure that Mass Storage Mode Support is set to Enabled.
3. Connect the BlackBerry smartphone to the computer and follow the prompts on the BlackBerry smartphone.
4. Open the My Computer folder on the computer. The media card should appear there as a Removable Disk.
5. Copy the files to the appropriate folder (either \blackberry\Music or \blackberry\Video) on the media card.

Using a media card reader

1. Make sure that the media card reader is connected to the computer.
2. Insert a media card into the media card reader.
3. Open the My Computer folder on the computer. The media card should appear there as a Removable Disk.
4. Copy the files to the appropriate folder (either \blackberry\Music or \blackberry\Video) on the media card.
5. Insert the media card into the BlackBerry smartphone.
Thanks for the response computer admin. My father has the BB media manager and desktop tool. When you open the manager it doesn't pick up on the fact that there is a mem card in it. I just recognizes the internal mem. Hmm that's strange, if the card is not being seen by the program it's likely that is the cause of the issue. May want to see if there is an update to the media manager tool and see if the BB is even reading the card, maybe it's bad.

Otherwise the only other SUGGESTION would be to try the flash card in a media reader.Thanx again. But to my EMBARRASSMENT I found the problem all I had to to was format the mem through the BB
Well at least you got it resolved and thanks for the update. I'm sure you're not the only one who has ran into it and any future user may find your above information useful.
Good advice.
So if you are having PROBLEMS trying to access memory stick with your BB 8100 then you can try formating the stick with the black Berry