Antimonument (1986)
itunes:
http://phobos.apple.com/WebObjects/MZStore.woa/wa/viewAlbum?id=268251397&s=143441
emusic.com:
http://www.emusic.com/album/Merzbow-Antimonument-MP3-Download/11122321.html

Oersted (1996)
itunes:
http://phobos.apple.com/WebObjects/MZStore.woa/wa/viewAlbum?id=268253337&s=143441
emusic.com:
http://www.emusic.com/album/Merzbow-Oersted-MP3-Download/11122205.html

Vibractance (1998)
itunes:
http://phobos.apple.com/WebObjects/MZStore.woa/wa/viewAlbum?id=268252354&s=143441
emusic.com:
http://www.emusic.com/album/Merzbow-Vibractance-MP3-Download/11122394.html

You can find more Merzbow albums at emusic and iTunes Store.