How to use int 13h for cd-rom?

Question

assembler

1) What function ( AH ) Should I use to read the disk
2) How to correctly ( What ) write data by sector, that is, how to create an image where data can be put into sectors and then write this image to disk
3) Is int 13h compatible with all computers Or it may be that it will work on one and something needs to be done on the second
. I apologize for the
correct spelling ... (Yes, yes, I don’t know Russian well, more in Ukr), as well as for everything for incomprehensible, ridiculous questions

Answer 1

AH 42h, since the CD is not an HDD and will be emulated as an HDD.
See an example of the finished code here: https://board.flatassembler.net/topic.php?t=13810