Details.
Doe not happen with Windows 7 or Windows 10.
It happens on my Windows XP SP-3 up to date. It is a Dell 755.
I bought two China MP3 players from eBay. Two models.
Test 1:
I open up a MP3 library, but do not start anything. I used Windows Explorer.
Next, I insert the new China MP3 player into front USB of my Dell 755.
(All the 755 drivers and BIOS are up to date.)
The familiar 'te-dum' sound comes from loudspeakers. Now I start to play a MP3 file using VLC and the progress bard indicates it is working, but no sound. I remove the [player from the front panel, still no sound. So I shut down the XP PC and to sigh-o sound is heard. Then I reset the Dell 755 and again go into XP. Now I have sound again and it is normal.
Test2:
I start playing a MP3 file using VLC and while playing I insert the china player. After about two seconds I hear the'te-dum' sound while Emily Lou Harris continues to sing. Does not even skip a beat. Audio is fine. So I stop the VLC player. No I restart VLC and nothing is heard while the progress bar in VLC keeps moving. Now I remove the China player. I hear a 'ta-do' sound, to indicate the china player is unmounted. But VLC is the same. no sound, progress bar still moving. Next, close VLC. After that I re start Emily Lou Harris again. She starts signing again.Same results with other artists, including material that is not covered by copyrights.
From this I conclude the china player stops any sound starting, but does not
stop what is already playing.
Same results with Win Amp. No error reported by either VLC or Win Amp. I had bought two different devices. So I believe this is a new feature found in some China players. They both have the same behavior.
This had me really baffled. I will stop using either with XP. All my oOlder players do not do this.
I doubt this is an 'accident'. I suspect the player wants to get into something, but I don't know what it wants. I don't have debug tools that could work on this kind of thing.
Anyway, I will take care is using either of these devices.