Rockbox

When I access History>Most Played; or History>Recently Played, a small box comes up saying something like "2462 files found" and then once it gets near 6000-7000, I get the error "dir buffer full!"

After I've reinitialized the database, those entries are accessible again. However, because it's a new database, they're empty. When I "Import changes" from the previous database, the problem occurs again. I've included the exported database file, in the hopes that someone can take a look at it and find where the problem may be, and perhaps what caused it.

I'm using revision 20032, but I know it didn't work in 20002 or quite a few previous ones. While I'd say it's probably likely that there's corruption somewhere, what I'm wondering is what caused that corruption, and can it be found/fixed? Hopefully the included file will be useful to that end.