transferring files to a Nokia phone

N wanted me to transfer some mp3s to a Nokia music phone. First try with the data card directly inserted into the card reader did not work - probably because the card reader can't read high density SD cards or something like that. Then tried by connecting the phone via usb and using Nokia Phone browser. That opened up Windows Media Player, and asked it to transfer files. But when we attempted to transfer, it would say "An error occurred". Finally got the job done by transferring to my SD card, then transferring from my phone to the Nokia via bluetooth. One future possibility is attempting through Nokia PC suite.