When playing a CD the signal it produces is distorted and warbly for around 25-30sec for a 5min track where after it resumes normal playback. Shorter tracks are affected for a shorter time. It seems to be in the region of 8-8.5% of the overall running time of the track. Upon resuming a new track the problem repeats itself. When playing a DVD the unpleasant effect seems to persists for the entire disc though i haven't had the forebearance to listen all the way through so its possible like the CD's it may settle down to normal after an indeterminate period (it is slightly more tolerable on DVD than when heard on CDs).
In both instances the audio signal is recognizable though is thoroughly unpleasant to listen to.
The machine is a Toshiba Qosmio G30 running windows XP with a TS-L802A optical drive (driver version: 5.1.2535.0 firmware TF30)
The problem affects audio playback only and only when using the optical drive. Audio and video files played off the hard drive work fine.
So far i have tried:
Different playback software - media monkey, VLC player and InterVideoWin DVD all respond in the same way.
Cleaning the lens with a cleaning disc as well as isopropyl alcohol.
Uninstalling and re booting the device driver.
Listening through headphones.
Turning Off "Digital CD playback" in hardware properties.
So far nothing has made a difference.
The problem began (as most of them seem to) spontaneously and from out of the blue.
I am about to try a firmware upgrade but wanted to get the advice of an expert first.
Does anyone have some advice they could give me on this?
Many Thanks in advance.
Edited by Mr Withacee, 28 June 2010 - 07:56 PM.