cdck is a simple program to verify CD / DVD quality. cdck is a simple program to verify CD / DVD quality. Even if all the files on the disc are readable, some sectors having bad timing and could become unreadable in the future.The tool reads a disc sector by sector, recording all reading timings and then tells you his plan verdict . cdck can optionally write a timing table into a text file usable by gnuplot, from which graphs can be drawn.What's new in this version: · Info mode (print CD / DVD Information and exit) is now the default . · A warning about the misleading error information has been added to startup.