Actual usable space on USB flash drive
 

I have a Sandisk 8GB flash drive. After deleting their proprietary crap, the free space is 7.47 GB, or 8,025,866,240 bytes. When I attempt to copy a 7.32 GB (7,867,281,408 bytes) file, it says disk full.

Any idea why? Is it because the flash drive is FAT32?

Thanks!

I thought there was a size limit on files for FAT32?

yes file limit size for fat32 is 4GB

That sounds promising - so if I reformat it to NTFS it should work.

I intend on transferring this file from a PC to a Mac - but it should be ok because a Mac can still read from the NTFS file system, correct?

You could also split the file with hjsplit or RAR (you can set RAR so it doesn't compress at all)

a mac can read ntfs but can't write to it without some software i believe

If you want to transfer a large file, just use NTFS and reformat to FAT32 afterwards since OS X natively supports FAT32.