can someone teach me about usenet?

ok on alt.binaries.hdtv.x264 i see many subjects similar to this
b5fda91a7a932-ZjVlMmNjNWFhMDVkZWQwMzE5NDNhMWQ3 – "b5fda91a7a932-ZjVlMmNjNWFhMDVkZWQwMzE5NDNhMWQ3"

how do i know whats inside without downloading it?

another one

UxAwP6Q3ez – : "991kTmZM7j6W2Ac6d417nnJTCXMkAVra"

You’re in the wrong subforum.

And I have no idea because I use bittorrent like a normal person.
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