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45worlds Forums » CD Singles » View Topic
| Scanning Silver CD Discs |
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| 9th Jan 2013, 2:12 PM | #1 REPORT | |
 | kab2112 SUBS Wales, where men are men and sheep are nervous Member since Jan 2011 15467 Points Moderator | I have 2 flatbed scanners - one is about 4 years old and the other brand new at Christmas. When I scan silver CDs with either of them, the image is shaded black or very dark around the outer edges. I've experimented with various settings on both scanners, but with no luck. Does anyone out there have any suggestions - they are both EPSON scanners. Check my results on AC/DC Money Talks CD |
| 9th Jan 2013, 2:17 PM | #2 REPORT | |
 | zabadak Caddacack oh da ca-caddacack, shy shy skagellack Member since Jun 2010 4148 Points | ha - just wait till you try any PDO-made ones, the ones that faded to brown!  |
| 9th Jan 2013, 2:39 PM | #3 REPORT | |
 | nboldock ● Lend me ten pounds and I'll buy you a drink. Member since Feb 2012 7169 Points Moderator | You can fiddle with the backlight correction but I don't think there's too much you can do. I had a similar issue yesterday, though to be honest I don't think it's a huge deal as long as you can see the detail somehow. |
| 9th Jan 2013, 3:59 PM | #4 REPORT | |
 | harley Member since Dec 2010 1065 Points | I had the same problem yesterday I have a Cannon MP 140 I will keep trying. |
| 9th Jan 2013, 7:23 PM | #5 REPORT | |
| kab2112 SUBS Wales, where men are men and sheep are nervous Member since Jan 2011 15467 Points Moderator | Further to this, It seems that the area of change varies from disc to disc. I think that the darker scanned areas (on the top side of the disc) start where the tracks finish (on the underside of the disc). So the less disc space used, the sooner the darker area starts on the top side of the disc. I'm not entirely sure that this is the case, but it's looking a bit that way. I think it must be something to do with the coating that is used to burn the data into the disc. Your thoughts on this would be interesting. |
| 9th Jan 2013, 8:44 PM | #6 REPORT | |
| nboldock ● Lend me ten pounds and I'll buy you a drink. Member since Feb 2012 7169 Points Moderator |
kab2112 wrote:
Further to this, It seems that the area of change varies from disc to disc. I think that the darker scanned areas (on the top side of the disc) start where the tracks finish (on the underside of the disc).
So the less disc space used, the sooner the darker area starts on the top side of the disc. I'm not entirely sure that this is the case, but it's looking a bit that way. I think it must be something to do with the coating that is used to burn the data into the disc. Your thoughts on this would be interesting. I think you're right... though I have no idea how to solve the problem! |
| 10th Jan 2013, 5:35 PM | #7 REPORT | |
 | Juke Jules SUBS Tell me he's lazy, tell me he's slow Member since Jan 2011 4138 Points Moderator | Is it the same with black or white behind (on top of) the CD? I back CDs with white so's the transparent centre and edge show white on a scan |
| 10th Jan 2013, 6:06 PM | #8 REPORT | |
| kab2112 SUBS Wales, where men are men and sheep are nervous Member since Jan 2011 15467 Points Moderator | Juke Jules I've tried with a piece of black card, and a piece of white card over silver CDs and it seems to make no difference. I have some Dark coloured CD singles with silver writing and the outer edges of the silver do not show. That's what made me think that is has to do with the coating on the discs, rather than the configuration of my scanners. I tend to cover all CDs with a piece of white card when scanning so that the centre will scan as white. |
| 10th Jan 2013, 6:26 PM | #9 REPORT | |
 | polarstar Member since Sep 2012 195 Points | Best thing to do is try to dull down the reflective CD surface by putting the disc behind clear polythene eg. a clean unmarked protective vinyl record cover Non PVC as its too clear. This will help to stop the scanner light reflect off the mirror surface of the disc. |
| 11th Jan 2013, 12:54 PM | #10 REPORT | |
| kab2112 SUBS Wales, where men are men and sheep are nervous Member since Jan 2011 15467 Points Moderator | I uploaded R.E.M. losing my religion which included a scan of the CD. The CD shows a physical line around the disc that can be clearly seen from either side of the disc. After scanning, the darkened area starts from this line around the disc which looks like the area that has been "burned" with the songs.. This would add to my theory that the coating has an effect on some shiny silver CDs KAB |
| 11th Jan 2013, 4:53 PM | #11 REPORT | |
| Juke Jules SUBS Tell me he's lazy, tell me he's slow Member since Jan 2011 4138 Points Moderator | Weird - what are you scanning with, an X-ray machine?  |
| 12th Jan 2013, 5:05 PM | #12 REPORT | |
| kab2112 SUBS Wales, where men are men and sheep are nervous Member since Jan 2011 15467 Points Moderator | Maybe it is - I bought it from Amazon. The line around the disc can be clearly seen from both sides of the CD. The scan seems to affected by it. |
| 18th Mar 2013, 4:54 AM | #13 REPORT | |
| GEMSMFAN Member since Jan 2013 3324 Points | http://www.45worlds.com/cdsingle/cs_forum_topic_view.php?t=9&h=p363#p363 I suggested some methods Edited by GEMSMFAN on 18th Mar 2013, 4:55 AM |
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