Recently, I got an MSR605X device (MSR stands for Magnetic Stripe Reader) and wanted to clone a magnetic stripe card for backup. After buying tons of different types of cards due to writing failures, it turned out the vendor's program had an issue. It failed to write more than 64 hex digits (likely because they used a TRACK_DATA_SIZE of 32). I decided to write the card myself. The first step was obtaining the manual or driver from the vendor, which I did weeks ago. I'm only now finding time to work on the program.