Since "Geocities" (my homepage provider) doesn't give too much space to ooparate, I can't put here all "Metallica" MIDI-files. But here is the link, where you'll be able to find every single song in MIDI-format:
"Metallica Internet Division" Page
Anyway, I put here 10 MIDI-files which I like the most:

Bleeding Me (From the album "Load")
King Nothing (From the album "Load")
Mama Said (From the album "Load")
Nothing Else Matters (From the album "Metallica'91")
One (From the album "...And Justice for All")
Sad But True (From the album "Metallica'91")
The Unforgiven (From the album "Metallica'91")
To Live Is To Die (From the album "...And Justice for All")
Until It Sleeps (From the album "Load")
Wherever I May Roam (From the album "Metallica'91")

Back to my "Metallica" Page