Hi Elaine,
Just a thought - what memory capacity is your BB1 - standard models are 16GB or 32GB - so 64GBs of music will not fit?
Choices are - changing the micro SD Card inside the BB1 for a larger capacity one or compressing the backed up files from the B2 to MP3 (MP3s take up much less memory space compared to FLAC) on your computer (requires 3rd party software - Google for convert FLAC to MP3).
Or of course you could import a selection of Albums only.
Paul
Brennan Support.