do "benchmark" and "scandisc" tests , a "disc quality" test could be nice too but artec drives do not support that feature
as for where you should post the images well abiously into this thread, heres how: upload to imageshack click here no registration needed ,then do a full reply not quick for that click on "post reply" button down on the left ,then click this button
then put the url for the image and click ok , after uploading to imageshack you see several urls for the image use the last one (direct link for image) , the "manage attachments" button can also be used for uploading images but unfortunatly that method allows only 1 image per reply which is why the first method is better
try other media brand , 02RG20 is a very good mediacode and have wide compatbility among drives but maybe your drive dont like it , could also be the drive itself artec drives arent the greatest
do you have the latest firmware?
you burned at the rated speed or lower?
when you burn do you do other things for example surfing/playing mp3s?
before you burned did you disabled the antivirus resident protection?
when was the last time you did a defrag?
check ctrl+alt+del do you see any program with excessive cpu usage?