Hard drive cant be accessed

this issue has started wednesday i plugged in the usb external hard drive and noticed a few things like i couldnt go into the drive with explorer. lately ive tried everything format, delete and new partition, safe mode, turing off ms processes, bunches of things. but what i can give to you guys is that chkdsk gives unexpected error 696e647863686b2e 1234 but its runs for a little while then gives error. hdtune gives the interface crc error count (so far its a little over 2000 goes up little bit everytime). i have plugged it into another pc to see if was just my laptop but nope. formatting and everything else does nothing even though it say it completed.this is the odd part i can access the 16gb fat32 partition but not the ntfs part. partition wizard is the only program that i can do things with this drive.