Did I forget on writing to a CD-RW disc?

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Maui

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Jul 11, 2004
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I wrote picture files to a CD-RW disc, there is still room, etc. Now I have opened a file, made changes to it but it says it is a read only file. I have tried saving it as a different name but that does not work either it says I cannot write it to the disc. What the heck has gone wrong? Or more importantly, what did I screw up?

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Jeanne
 
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Mar 18, 2002
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8,709
You screwed nothing up. All files on any normally burned CD are read only whether it's a CDR or CDRW. CD's are not the same as hard drives. Once something is on the CD that's it, you cannot change it. The difference with a CDRW being you can wipe the lot and use the disc again. To make 'changes' to a file on CD you'll need to copy it to your PC, work on it there and burn the new file back to the CD.
Furthermore you can only add files to a CDRW that already has data on it, if that CDRW was created as a multi-session CDRW in the first place. If it wasn't and the disc was 'finalised' after that first burn then you can't add anything else to it without wiping the lot and starting again.
 

Maui

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Jul 11, 2004
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84
Thank you so much, I thought I was losing it! I appreciate the help.

Jeanne
 
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