Laptop DVD drive recognizes burned discs as empty?

Got a laptop for free. This is a Toshiba Satellite Pro l770-12Q. Everything actually works. Only the internal drive always recognizes burned CDs / DVDs as empty, even if there's something on them. Original CDs / DVDs are read without problems. Burning an audio CD with the affected drive was also successful. The CD could be played in a CD player without any problems, but the drive in the PC also recognized it as empty after the burning process.

Everything works fine with my external Blu-Ray drive.

Do you have any idea what could be going on there?

The affected drive is a TSSTcorp CDDVDW TS-L633F

There's a copy protection built in. Or the self-burned ones were burned at too high a speed

What is copy protection? The CDs were all burned at 24x speed. Any drive can do that.

Burn yes, sometimes the blanks bring up to 52x (CD). But if you burn so quickly, the data may be written "dirty" and then the whole thing is unfortunately quickly unreadable. The older optical drives are also somewhat more sensitive when it comes to such things (such as scratches, dirt and so on).

The problem is solved. I cleaned the laser with a damp cotton swab and now everything is recognized.

No thing… I hadn't even thought of the old trick, I haven't had the problem for a long time ^^

This is when you have downloaded a file that you can't burn yourself. But that's not always the case.