1. Definitely FM, but is suspect to me. Check out this part in the FA. Some pretty clear blockiness.
2. Weird for sure. The whole damn thing is mirrored around the 10-12 split. Really bad transfer or upsample is my (barely educated) guess.
3. I think it's lossy, looks like MD a bit but I don't find the upturned parapets in the blocky parts.
4. Wayyyy lossy. Smells like mp3.
5. Well first of all, it's mono. Looks and sounds lossless to me, maybe recorded with only one mic and some whacky recording setting where the recorder only got a tiny bit of the sound.
So those are my guesses. Correct me if I'm wrong folks.
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