Archived posting to the Leica Users Group, 2001/10/12

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Subject: [Leica] Re: HELP urgently needed
From: Jim Brick <jim@brick.org>
Date: Fri, 12 Oct 2001 21:52:41 -0700

On most computers, when new files are created or copied over top of 
original files, the new files are created first and then the original files 
are erased. But usually only one or two characters of their name is 
changed, in the disk directory. Ordinary unerase programs can usually 
recover these files because they are really not erased or damaged. Just the 
name is changed. At least this is how it works on a PC. If you have an 
apple, ask Godfrey DiGiorgi. The stickler is, if you have written to the 
disk after the mishap, there is a possibility that the OS could use the 
space that was (still is) occupied by the deleted file. The watchword is 
that if you ever make a mistake like this, do not use your computer for 
anything except running the unerase program. PC's come with a file utility 
that will unerase any file whose space hasn't been retaken. Even on 
Windoze, the trash bin collects erased files for recovery, basically 
forever. When erasing files on Windoze, you have to take a special effort 
(hold the shift key down) to erase a file and not have it retained in the 
trash bin.

Jim


At 12:37 PM 10/12/2001 -0500, lea wrote:
>I sick and hope someone can help me.
>
>I ran an auto batch process in Photoshop to convert my .psd  images from
>300 dpi to 75 dpi.
>
>Something in what I did was wrong because rather than write the 75 dpi
>images into a new folder it overwrote the original 300 dpi ones.
>AAAAARRRRRRRGGGGGGGGGHHHHHH!
>
>So now my working images are all at 75 dpi and while many of them are
>backed up onto cd rom I have some that are not.
>
>Can these 75 dpi images (all in .psd format) be converted back to 300
>dpi without a loss in quality and how do I do it?
>
>Any help is most gratefully appreciated and I anxiously await any help.
>Lea (with the nauseous stomach)
>
>
>
>--
>Lea Murphy
>Whiny Dog Press
>816-333-9111
>Home: http://www.whinydogpress.com
>Newest: http://www.whinydogpress.com/new.html
>
>
>--
>To unsubscribe, see http://mejac.palo-alto.ca.us/leica-users/unsub.html

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Replies: Reply from Henning Wulff <henningw@archiphoto.com> ([Leica] Re: HELP urgently needed)