How do LR identify a picture?

There are many discussions on whether to keep metadata in LR only or both LR and in the images/sidecar. Pros and cons of both solutions. Many pros and cons. Anyway, that's not the topic here, but if we are to keep the data inside LR only, how sure can we be that the connection between an image in the database and the image on disk are kept? I mean - if an image changes name or changes location, how good will LR be in finding it again?
Or to rephrase the question - what is the logic behing how LR identifies a picture. I guess it's not path and filename only.
H

> I don't get this system at all. The file name tells you nothing you need to know but the date, and that's already in the EXIF info; you already know your name. The camera generated file name is particularly useless to me; I see its use only where one backup before renaming files.
> My file names tell me a bit about the subject, and are generally numbered under 1000. Everything else and more is in the file's metadata.
You're right that the file name doesn't tell you much, but then it doesn't need to! The only purpose of the file name in this system is to be uniquely identifiable. The *real* information is stored in the meta data where it should be. In this system, renaming files to be unique should take no effort or thought; it should simply be a case of running a script and backing up the files as soon as possible to limit the chances of data loss.
Having the initials in the file name can be useful if you have photographs from different photographers on your system. It is also useful if you send your photographs to companies or agencies - it can help to quickly identify who the photograph is from (albeit that information is in the meta data anyway).
The system certainly isn't for everyone and I'm not suggesting you should change yours. This naming system serves its purpose extremely well for me and for many others. Removing the burden of information from the file names and directory names and placing it in the meta data is a wonderful concept in my mind. It facilitates an organised and easy to maintain (and backup) file structure for your precious/valuable digital photographs.

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Thank you for the prompt reply unfortunately the fix did not work.
Let me provide some more information that may help you diagnose this problem.
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hi
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regards
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How to give points: Mark your thread as a question while creating it. In the answers you get, you can assign the points by clicking on the stars to the left. You also get a point yourself for rewarding (one per thread).
Edited by: Boujema Bouhazama on May 9, 2008 12:04 AM

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How do LR identify a picture?

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