In addition to the CDs listed by rich r, 'At the Bitter End' and 'Blowin' in the Wind' have been reissued on CD - Folk Era 3281 and 3313 respectively. You can (or could) get them at CD Universe. I think I recall seeing somewhere that 'Mighty Day on the Campus' also made it to CD, but may have imagined it. There is also a Chad Mitchell solo album 'Virgo Moon' on CD.

--Stewie.