Photoshop 7 problems reopening some files

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I'm using Photoshop 7.... and store files as .phd... and very often when I try to open a file I get "Could not open ..xxxxxxx..... because it is not a valid photoshop document...." it's opened no problem before, so what has changed ? it can also do this with .jpeg and .tiff files.
Regards,
Mark Arscott
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Mark Arscott

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Posted 3 years ago

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Chris Cox

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Do you mean .psd?

Photoshop 7 is rather old, and doesn't work well on modern systems.

"not a valid document" could mean two things: the file is corrupt on disk, or the file contents don't match the file extension used (i.e.: it's a PSD file, and someone changed the file extension to .jpg).
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Mark Arscott

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I use Photo Shop 7 because it's comfortable and fairly robust... I have recently got into the habit of storing files as .psd AND something else, usually .tiff.
I have found .jpeg more likely to corrupt on its own....not as daft as it sounds....close and save a file one day as a .jpeg and try and open file NEXT day and it comes up with "Not a valid document."..etc

I've have this in other versions... is there any way of recovering the file....can't find a 'File ext' change that will work, hence save it under two different file types.
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Chris Cox

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If you are seeing corrupt files that often, then most likely you have a problem with your disk or some utility related to files (some font managers mangle files, and some backup software has done so in the past).

And Photoshop 7 is old enough that it will not run well on modern systems -- it can't handle hard drives over 1 TB, can't use modern print APIs or scanner APIs, and is still a 32 bit application (limiting it to 2 Gig of RAM usage).