Saving crashes emulator in MGS HD Collection [BLUS30847]

Whenever I try saving the game, be it in MGS2 or MGS3 of the HD Collection, all the sound cuts out and the game freezes in place. What's driving me nuts is that after I tried reinstalling RPCS3, I was able to successfully save the game once, and never after. I can load that save no problem, but trying to make another ends in a crash. I'm dying here-- what do I need to do to fix this?