Rebuilding corrupt files after SD Card crash

So guess who dived in a pool and killed his Insta 360 One X2

The camera sort of came back to life once it had dried out but freezes on blue light

More to the point is that I can't read the SD card on PC

Bought/downloaded some software - EaseUS Data Recovery Wizard Professional which can see the files and is recovering them all but as separate Mov files with new file names

These files are all fairly small - maybe the iPhone preview files?

Another folder has bigger files as INSV files

But when I try to open them it says the file is corrupted

Any one got any ideas on this or is that data now lost?

I have hundreds of files on there so some sort of bulk reparing strategy would be useful

Hope someone can help