I've recently gotten a blackberry 8900 and am trying to downlaod music and songs onto it but sometimes it says the requested page is too large for the device. I've gotten a microsd card and have put it in there. Will this help? And how big of files can I download?

Its got 56.5 megabytes of internal mermory and the card is an 8 gigabyte microsdhc. I want to download videos and songs directly to my blackberry. (Sorry if this is taking long I'm doing this from the device)