A computer components & hardware forum. HardwareBanter

If this is your first visit, be sure to check out the FAQ by clicking the link above. You may have to register before you can post: click the register link above to proceed. To start viewing messages, select the forum that you want to visit from the selection below.

Go Back   Home » HardwareBanter forum » General Hardware & Peripherals » General
Site Map Home Register Authors List Search Today's Posts Mark Forums Read Web Partners

Why is the process of recognizing an optical disk so slow?



 
 
Thread Tools Display Modes
  #1  
Old June 7th 13, 03:37 AM posted to alt.comp.hardware.pc-homebuilt,alt.comp.hardware
Doc[_2_]
external usenet poster
 
Posts: 62
Default Why is the process of recognizing an optical disk so slow?

Currently running a Core2 Quad, I find that putting in a DVD, CD or
Blu-Ray disk and waiting for the machine to recognize it and have it
be ready to write to still takes about as long as it did on my first
Pentium I machine. Why is this process still so plodding?
  #2  
Old June 7th 13, 08:22 AM posted to alt.comp.hardware.pc-homebuilt,alt.comp.hardware
Paul
external usenet poster
 
Posts: 13,366
Default Why is the process of recognizing an optical disk so slow?

Doc wrote:
Currently running a Core2 Quad, I find that putting in a DVD, CD or
Blu-Ray disk and waiting for the machine to recognize it and have it
be ready to write to still takes about as long as it did on my first
Pentium I machine. Why is this process still so plodding?


There's more than one step to it.

1) The drive has its own processor (MediaTek for example).
2) The drive looks at the media tag on the media.
3) Once "recognized" in some way, an event is raised with
the OS. It could be, that the OS polls the storage bus
once a second, to detect that a new disc is "available".
4) Now, the OS portion cuts in. On a multi-type drive
(CD/DVD/BluRay), the type of disc, the file system on it,
will be playing a part.
5) The file system details, may require accessing a few different
spots on the optical drive. Since the access time of modern
drives is 110 to 150 milliseconds or so, that can be rather slow.
Older drives, like some CD drives, the number for them was only
90 milliseconds.

It's not an excuse as such. It's just there's a lot of
"slow media reading activity" before the disc is finally
available in the file explorer.

It's still possible, for there to be a software problem
with your setup, in which case, whether you have a quad
or not, might not make much difference. For example,
if you have some "virtual CD" software, that may be
interfering with the detection of real physical drives.
If you're a pack rat, and have installed every possible
kind of ripping software out there, that can be part of
your grief as well. I had such a virtual CD software
on an older system, and if I tried to run Nero, it
would almost drop the system to its knees, as Nero
would discover the virtual CD and keep poking it.
Once I disabled the virtual CD software, things
returned to more normal time constants.

Paul
 




Thread Tools
Display Modes

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

vB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Forum Jump

Similar Threads
Thread Thread Starter Forum Replies Last Post
Problems recognizing hard disk Compaq Proliant ML350 martino Compaq Computers 2 October 15th 07 05:16 AM
NEC DVD Disk Drive Not Recognizing Inserted Disks TrickTrash General 5 December 13th 06 03:03 AM
NEC DVD Disk Drive Not Recognizing Inserted Disks TrickTrash General Hardware 0 December 11th 06 02:26 PM
Need help on Tape,Optical disk... babi Storage & Hardrives 2 May 23rd 06 02:02 AM
Cheap HSM Utility to Migrate From Fast Disk to Slow Disk? CHANGE USERNAME TO westes Storage (alternative) 0 August 6th 04 07:49 PM


All times are GMT +1. The time now is 01:38 PM.


Powered by vBulletin® Version 3.6.4
Copyright ©2000 - 2018, Jelsoft Enterprises Ltd.
Copyright 2004-2018 HardwareBanter.
The comments are property of their posters.