I just got a 32 gb micro sd card for my Blackberry Torch and once i transferred all of my data from the original 4 gb, i was missing all of my pictures, videos, etc. Here is my transfer process just in case you can see a problem:
1. Backup data using Blackberry Desktop Manager (with 4 gb sd)
2. Restore data using Blackberry Desktop Manager (with 32 gb sd)
3. Sync a playlist of music from iTunes
If you see a problem please tell me. Thanks.