CD drive very slow when reading


#1

I have an external USB 2.0 CD writer drive which is obviously detected correctly:

[  190.429207] usb 1-1: new high-speed USB device number 20 using xhci_hcd
[  190.576627] usb 1-1: New USB device found, idVendor=0e8d, idProduct=1806, bcdDevice= 0.00
[  190.576634] usb 1-1: New USB device strings: Mfr=1, Product=2, SerialNumber=3
[  190.576638] usb 1-1: Product: MT1887 
[  190.576641] usb 1-1: Manufacturer: MediaTek Inc
[  190.576644] usb 1-1: SerialNumber: S15T6YKF8002XD 
[  190.626575] usb-storage 1-1:1.0: USB Mass Storage device detected
[  190.630088] scsi host2: usb-storage 1-1:1.0
[  190.630214] usbcore: registered new interface driver usb-storage
[  191.634760] scsi 2:0:0:0: CD-ROM            TS8XDVDS TRANSCEND        TW00 PQ: 0 ANSI: 0
[  191.634955] scsi 2:0:0:0: Attached scsi generic sg1 type 5
[  191.662563] sr 2:0:0:0: Power-on or device reset occurred
[  191.681368] sr 2:0:0:0: [sr0] scsi3-mmc drive: 62x/24x writer dvd-ram cd/rw xa/form2 cdda tray
[  191.681371] cdrom: Uniform CD-ROM driver Revision: 3.20
[  191.681629] sr 2:0:0:0: Attached scsi CD-ROM sr0

As one can see, it is detected as drive which is capable of 62 times reading speed and 24 times writing speed - which should be correct. However, when I read a CD - say I rip an audio CD by using Sound Juicer, it is hardly ever faster than 2 times.

Is the detection wrong? Can I configure something that makes the drive faster?


#2

Higher read speeds introduce read errors, hence ripper software will often read at much lower speeds in order to get a “perfect” copy.

Check your ripper settings.


#3

It depends what you (or soundjuicer) use(s) as backend for CD ripping. If it is cdparanoia, it has several levels of error correction that slow the ripping down (and make it more accurate).


#4

Yes, use a CD ripper that allows to adjust the backends correction capacities (and lower the paranoia level to 0). I (still) use Audacity, but it is depreciated, my GUI alternative is k3B, but you may want something GTK based (even if for a stanalone ripper DE integration is not that important). There are plenty other CD rippers like ripperX … Here you can find a nice overview:

http://www.decocode.de/?66

A nice command line program is abcde (once you have it configured).


#5

Thanks, so far. I am gonna look around which GUI pleasess me as soon as I have bit more spare time…
And yes, you are right, Sound Juicer’s options are quite limited.


#6

Wow, I tried Asunder and it is really noticible faster than Sound Juicer. So, now I know that it is not a driver problem but really a matter of configuration which can be done at frontend level. Thank for your great advice.

So, now, where can I control CDParanoia settings? I could not find any file or directory referring to cdparanoia configuration.


#7

It depends on whether the GUI frontend allows you to set cdparanoia settings. Asunder only lets you switch on/off error correction, but cdparanoia has more options than mere on/off.

You may check:
https://wiki.hydrogenaud.io/index.php?title=Cdparanoia
for frontends of cdparanoia. I’d give ripperx a chance.


closed #8

This topic was automatically closed 90 days after the last reply. New replies are no longer allowed.