Rebuilding iTunes library from AAC files after drive failure

I have Itunes Version 12.13.9.1 and have over 7000 albums. Recently the drive I had Itunes and my music folders on stopped working. I have an sdcard with the files on it that I use with my Fiio m15 player. I used foobar2000 to convert the files from the Itunes files to AAC for the Fiio unit. I've tried many times to convert the file back so that Itunes would work with it but the most I get is 3891 albums. I've tried adjusting the file lengths but nothing works. Any suggestions? I don't want to scan 7000 albums again. Thank you