Differences between 7240s and 7243s

Besides labelflash, is there any other differences betwwen the 7240s and 7243s drives?

I’m asking this because I saw there are different firmware versions for each drive and that doesn’t happen with 7241s.

7240S and 7243S (also the 5240S) only differ in software (firmware) while the 7241S has an additional board for Lightscribe disc detection. The remaining hardware should be the same.

There should be different firmwares for all drives. Here you can download firmware 1.03 for the 7241S for example.

In that case, I’ll buy the 7243S, because I cannot get the 7240s or 7241s near me. Thanks for the answer.