Quoted from delt31:

In case this helps.....I strongly recommend getting this sd card.
amazon.com link »
Only use win32img to flash.
I have yet to have any issues with the ultimate code using the card above and the win32 and I've played many many games on it. PC user so can't comment on MAC. Good luck and enjoy.

Quoted from timlah79:

As a follow up to this, I took it all back to the PBrowser dev and tried all of the above steps with a stock JP 1.02 download. Same results. I sent him the most meticulous of details and he has no advice other than that Balena Etcher is unreliable if you're trying to flash code that has video edits. You'll need to use either the PBrowser's flash tool or Win32DiskImager.
I even took it a step further today and experimented with importing videos from my working audio only edited version. I got some errors upon hitting save in PB during one import, but as long as I flashed the result using PB's feature or Win32DiskImager, the game loaded up just fine and no restarts have happened in game. Plus all like 6 of my custom videos are playing without issue.
What I did do is make sure each video I import is the exact same timing as the stock. The current 30TS and 31TS versions do still have videos that are longer than the stock ones which I feel is always going to pose a problem. I think it's best practice to only import videos OR sounds with durations in parity but at the same time who knows if that's even part of this issue. In no way am I saying that Delt's longer videos are the root issue here, it's just a hunch b/c I know from all the audio work I've done A) the duration limits the playback of a given sound and B) b/c of A I've been meticulous about adding sounds that are <= the stock's expectation and C) If you import a longer video, the firmware + game triggers don't limit its duration as it does with audio imports.
It's also important to note that other folks importing videos to other game firmwares are having the same issues (a recent pinsider has been struggling with the same with Aerosmith for example). So I'm just saying that this isn't JP specific. This still could be a PB bug OR just a standard Stern bug when it comes to all the variables involved in video files (frame rates, duration, size, aspect ratio) in general.
Moral of this story currently IMHO:
Don't use Balena Etcher if you can avoid it.
PC users need to use PB for flashing to SD or Win32DiskImager. Do not use Balena Etcher.
Mac users - we need to find a reliable flashing app for you. I really don't know what else is out there but a different app could be the end all resolution for you guys.

Quoted from timlah79:

I am aware of the terminal way of doing it but I've never tried. I also feel like it's super sketchy if you don't know what you're doing. Would you mind posting precise steps that we can share with Mac users?

Quoted from Hokie822:

The only weird sound I get is during the egg turn at the end of the game. If it matches it unleashes an awful sound. I wish I could shut that off.

Quoted from rwalters21:

just picked up a pro today and absolutely want to update with Tim's custom code. I'm not super tech savvy but I'm dangerous enough to get it done I think ha. all I need is a separate SD card and the link to the code?