Cannot make ps1 backup...need help

[psx one]

Trying to back up Tomb Raider 3 but having problems. I am using CDRWIN and backing up by copying to image first. Every time I get to 64%, error message pops up. It says

Error: Unable to read DATA sectors 190458 to 190484 on device 0:0:0 Illegal command request (04h 00h 02h 05h 64h 00h)

Does this mean that my origional is bad? It works fine in my psx. I have never had this problem before when backing up. I have even set read retry at 50 and read speed at 1.

Any suggestions?