You are in luck then regarding bitsetting, the Liteon 1693S has that ability.
I suggest you visit the two sites below and download the Omnipathcher and the latest firmware for your drive, with these tools you can enable bitsetting to your drive and tweak it at the same time.
I have burned close to 400 dvd's using bitsetting (DVD-Rom) and loaned them out to over 1 dozen people with equipment from excellent to el cheapo's, and nobody ever complained about a diskl not playing.
Discuss this with your friend in the computer business, I'm sure he\she will have no problems updating the firmware.
Best Of Luck.