In light of me still trying to figure out the reason why random restarts happen sometimes for some people during T-Rex Multiball:
I went through all of the T-Rex MB related videos today, comparing delt's videos to the stock animations. I found some more duration discrepancies--no fault to delt's work intended here, it's only a hunch of mine that duration and/or FPS has something to do with this issue. This likely could be a different, unrelated root cause entirely. Given my hunch though, I edited all custom T-Rex MB related videos so that they all match the exact duration, FPS, file size etc. of the stock videos -- aka I made them exactly to what the game expects (I hope!).
HELP NEEDED: I need PREM/LE folks who have experienced T-Rex MB restarts to test this new version. It's the same private 34TS link you already have.
Please re-download it and ensure the filename is labeled 35TS aka jurassic_park_le-1_02_35TS_D31_ORIG_END.zip
If it's still 34TS please PM me.
Extract and flash the resulting .RAW file to a new SD and play for a while, triggering and staying in T-Rex MB for as long as you can. Please enter and play through T-Rex MB multiple times with new games/players as well.
Whether you do or don't get a restart please PM me with the results. If you do get a restart, please send me any details you can about exactly what seemed to trigger it at that time.
QUESTION: Have any PRO owners had a random restart after installing PRO 34TS_D31?
If not, then it's possible that the method I used to port all the video assets from PREM/LE to PRO have inadvertently resolved the issue for PRO owners. Please let me know. I've also updated your links to be in parity with the PREM/LE 35TS_D31 version. No need to "re-download" if you haven't had any issues.
If you reply please state the model you have PRO or PREM/LE.