waruna posted an answer for this Iomega 100MB IDE Black Zip Drive (ZIPBRACBLACK) Drive:
"i think it is damaged. because of the bad sectors . try to use third party recovery app"
waruna posted an answer for this Maxtor One-touch III Mini 40 GB USB 2.0 Hard Drive:
"sure you can recover some files (not all) using third party recovery app. and do not write..."