The photo studio burned the photo I took on cd-r, why can I only watch it in the CD-ROM drive of the computer, but not in the DVD player at home?

that's the problem of burning, not your machine. Generally, many people burn the data as data, so they can only read the disc on the computer. For example, you want to burn your favorite songs, but if you burn them as data, you can only save them as data and play them on your computer, not on your home VCD/DVD player. The solution is to burn them into cd records when burning. I think your album cd is a data storage disk. If it has been made into a movie-like clip, you can copy it and burn it into a cd again, so you can play it on the machine.