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Why You Always Need To Create .isos


Syrallas
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Hi out there.

 

I just completed my first decent length (about 40 minutes) slideshow of a recent trip to Disneyland in California.

 

If anyone out there wonders if you should only "burn to disc"in MyDVD and not burn an .iso, take a look at this "beauty" of a burn I just got!

 

0burnar2.gif

 

Haven't had a zero in a while!

 

Lite-On Burner, previously good batch of Sony DVD-R discs, 4x speed!

 

Try making a good copy of this disc for the relatives!! :lol: :lol: :lol:

 

Lesson: ALWAYS create an .iso image. Then, like in this case, you only throw out a bad disc, not the disc plus all the time encoding your project!

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Those 16D1 Sonys usually work quite well for me.

That's what was so puzzling. I've burned about 40 or so from the same spindle so far and never got a quality score below a 90.

 

On closer inspection of the actual disc, for some reason the side on which you burn data seems to have permanent "water marks" on it -- like if you let water air dry on it -- but the stains don't leave. Obviously I'll look at both sides of the disc for the rest of the spindle before trying to burn anything.

 

Here's another snapshot of that disc's problems after I ran it through disc speed at 8x (w/o the statistics) -- clearly an awful burn!

 

0burnhj2.gif

 

 

 

 

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On closer inspection of the actual disc, for some reason the side on which you burn data seems to have permanent "water marks" on it -- like if you let water air dry on it -- but the stains don't leave. Obviously I'll look at both sides of the disc for the rest of the spindle before trying to burn anything.

 

I'd say the manufacturers "blew the mission" with that disc, Tom. The dye coating process failed to go uniformly. Unfortunately some makers' QC isn't quite as good as others, and you'd hope a disc with visible faults would get caught.

 

 

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