The importer keeps the archive names the collection holds and every set whose member list equals an archive the collection keeps under another name (aga.zip is isa_aga), under the collection's name with the upstream one in set. All 113 MAME listxml releases (0.177 to 0.289) are imported, not one in five, and FBNeo is read again at its tip: 2,936 MAME recipes and 145 FBNeo ones, compacted as before.
fccpu20.zip, fcisio1.zip and interpod.zip now have recipes and carry slot ROMs beside their own set. Trimmed, each equals the archive under the newer MAME name, so they are kept as they are until the storage decision.