CD2ISO is a simple tool to extract .iso images from your cd or dvd disk. It will read any drive as raw disk, so you can also use it to make a sector dump of a removable drive (cd, dvd or floppy).

Cd2iso works very straight-forward. It will dump raw sectors of a filesystem. You do not need any additional dll files.
You can use it to make iso dumps of a CD or DVD drive, and to verify the checksum of existing or just-burned disks.