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CDA entries disappeared in explorer for audio-cds / bd-re drive appears empty

Since a week I am not able to see .CDA entries in explorer or total commander any more for audio cds. Even windows media player says please insert medium because my lg bd re drive seems to be empty even if a cd is inserted. this even happens with commercial audio cds. when I insert cd rom when wmp is open it directly plays this audio cd.

vlc player when being told "open medium" with selected medium is audio-cd plays the audio cd. I just tried reinstalling the cdrom driver for the blue ray drive, because there is not a driver from the manufacturer so it takes the driver from microsoft developed in 2006. because i dont have a burning program yet, i didnt cope with lowerfilters/upperfilters in the registry. would be nice if anybody has an idea or same issues. formerly everything worked perfect with cda files recognized in aimp. assigning the programs as autostart/autoplay doesnt help either. data-cds are further readable. the drive stops reading (blue led in front of drive) the audio cd after a few seconds, while data cds are read much longer upon insertion. ITunes finds the cd if already inserted and plays the titles normally.

rindi

If the Upper lower Filters don't help, I'd suspect a hardware problem with your Drive. I've seen countless issues with bad drives.

nobus

test with another cd drive as first step
i would suggest an usb drive- if you don't have a spare : The Best External Optical Drives for DVDs and Blu-rays in 2021 | Reviews by Wirecutter (nytimes.com)

David Boettger

ASKER

good idea, if the other drive shows same issue i will come back to the filters, otherwise i will exchange bd-re drive

David Boettger

ASKER

I tested with an external blue ray drive. The CDA files are there also missing. Can you tell me, what to do with the filters? (@rindi) / checking registry keys or if anybody knows if changes to these topics came within the latest windows update ?

rindi

The Link below basically explains what you have to do to delete the Upper & Lower Filters. Windoze Updates don't repair that (the issue has been present since Windoze XP), & Windoze Updates generally won't change Registry settings. Besides that some of those settings may not be the default Windoze setup, but rather they often get added by other software or actions.

https://www.lifewire.com/how-to-delete-the-upperfilters-and-lowerfilters-registry-values-2619222

nobus

look if this helps : .cda file not getting detected on Windows Media Player - Microsoft Community

David Boettger

ASKER

Hi nobus thanks for your answer, i checked (on a laptop and desktop computer) that .cda files are assigned to windows media player.
The problem is that e.g. total commander and windows explorer show the drive as empty or not present (no medium). Formerly the .cda files where visible (assume that I show all file extensions). so at the moment only vlc and itunes show an audio cd if already inserted, windows media player starts playback as soon as medium is inserted on already opened instance of media player. I also deactivated kaspersky internet security for 2 minutes -> same result. Thanks also for the other suggestions, i will check the filters soon.

nobus

test also if the same happens in safe mode, or with another user account

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David Boettger

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