The other day, I generated a redump dat for ps1 containing only the 1713 games listed in HyperList for that system. I changed the redump game, description and rom texts to use the hyperlist xml game text. It wasn't difficult, it just took some time. Most of that time was spent finding the 120 games listed in the HyperList xml that had names different in the redump dat. Also, there were 44 games without redump entries. No big deal.
Now I'm preparing to do the same for Dreamcast with Trurip which looks to be a little more involved. So it has me wondering, is someone already providing dats that are based on redump/trurip/etc and trimmed down for games included in HyperList xmls? Or is this useful to others? I'm sure I'm not even close to being the first one to do this work but I can't find any mention of it being provided.