Any Folder Games that do NOT work when converted to ISO?

Hello,

As the title says, are there any PS3 Folder Games/JB Format games that do NOT work when they are converted to ISO format?

I'm considering converting my Folder Game backups all to ISO because some games won't work right unless they are converted to ISO, but I'm always nervous about compatibility when converting to file formats, especially when Folder Game format was how backups were kept in the beginning.

If there are any known games that don't work, is there a list or website?

Thanks!