DVD drive beeps during reading (twice on DL discs)


#1

If I listen to the sounds coming from disc drives when reading a disc, there is always a beep when a disc is recognized. This beep occurs twice on dual layer discs, and only during this reading process.

Can anybody explain the meaning of this beep?


#2

What drive are you using?


#3

This happens to every disc drive.
It is a normal part of the reading process, I am just asking about it’s meaning.


#4

Pioneer and NEC drives tends to beep on disc recognition and layer switch.
I have a BenQ and LiteOn drive. They do not beep, and recognizes discs faster.


#5

Hello, Sanyolc.

I have not read your posts yet, but I am about to.
Thank you very much for your high engagement with my threads.

This beep sound occurs for me at reading. On newer disc drives, it is ~100ms short, while old drives have 1000ms of beeping sound.


#6

Although this is offtopic, the NEC and Pioneer drives should be faster in recognizing discs due to the NEC chipsets used.


#7

The fastest drive I tested was my Samsung 224DB. Pioneer BDR and DVD (QSI-based) were slower, LG BH and GH also. But time depends also on media-type, especially with DL the times vary a lot

The beep-sound, I think Pioneer do it, but can be model-dependent; I think old Toshiba-drives (not TSST) also.

BTW, the old Toshiba (Read-) drives were in the past the fastest at recognizing. I don´know if it depend on the chipset, the Toshiba use a simple “trick”: my other drives (Liteon, Cyberdive) increased rpm after inserting media and slowdown then, Toshiba stayed at low speed and recognized much faster


#8

Now, what causes that beep sound?



#9

A little buzzer, I guess