The emulation community is an odd thing, especially on the ZX Spectrum. Here people seem obsessed with archiving all of the old software as precisely as possible, which is no bad thing really as those old tapes are gradually degrading. One of the popular formats is TZX, but it has recently caused issues due to its complexity - if you read the
WOS forums you'll no doubt have spotted threads about newly-added TZX blocks. The general response if people have complaints is that they're welcome to "come up with something better"... and that's exactly what
Patrik Rak has done.
The PZX format was proposed way back in April and received some good feedback (ok, and not-so-good feedback). One of the comments was that some kind of toolset was needed in order for the new format to be considered... so a toolset was created. Three weeks ago. I missed it. Sorry. Anyway, you can grab the
PZX Tools and have a play, and you should be able to read the latest
format proposal too. Will it be adopted? Who knows - we can but wait. Or provide input. It is a community, after all.