Rockman exe OSTs were so easy to find, but mmnetwork took them offline, so I had problems finding them... but here they are - lossless!

Rockman exe Game Ongaku Dai-zenshuu Rockman exe 1-3 - lossless FLAC+scans
https://mega.co.nz/#!aBh0RJCL!TMey42FobOujqatYwWF8JnwP9z5232vAlE3LMLK Auo8

Rockman exe Game Ongaku Dai-zenshuu Rockman exe 4-5 (yes it has 4.5 also) - lossless FLAC+scans
https://mega.co.nz/#!XF5FHTKY!CWb1E2yiivt3uxNPbCSaun-bGU1OC6qxbnVXqCFlQDw

Rockman exe 5DS-6 Ongaku Dai-jiten - lossless FLAC+scans+ Rockman exe Transmission Soundtrack - mp3, no scans
https://mega.co.nz/#!yFojAa6D!bSDBrSVuUIL9OAhTuHjlxQ1JSpwhZV0w1-ntO5gwCIA

Files are separated with original Japanese tracknames except Transmission OST which has English names.