Michael describes in the post I linked the effect. You would get an additional entry called A with a size of 999. But I really doubt that many users would have seen it because you would probably boot directly with the disk in the drive and would not have anything above the buffer stored yet. Alas, I have seen that Deckard’s excellent page is gone. Fortunately his disassembly is still available in http:// https://web.archive.org/web/20190812061503/http://boutillon.free.fr/Underground/Outils/Beautiful_Boot/Txt/Boot2_Beautiful_Boot.txt It is strange that there are two separate counters, OBJNUM and BIN_COUNT, where only the first one should be necessary. They should both count up to 14 and stop, but somehow BIN_COUNT was allowed to go up to 15 thus messing things up.