Photo and iPhoto Libraries

[rlm45]

Migrated an iPhoto Library on El Capitan iMac to Photo, 51 photos.

How come the Photo Library is 51 MB, and the iPhoto Library is 32 MB for the same number of photos.

Also it seems the same photos looks better in iPhoto, than Photos. Maybe it is just me.

On my disk I now have two 20006 Libraries (folders). Why do I need two. Can I delete one?

The explanations on the WEB are clear as mud to me on what is going on here.

Can someone give me a better explanation on what happens when you launch the Photos Migration.

Thanks

 

[MacInWin]

Not to be pedantic, but do you mean Photos? You kept referring to Photo. I don't know the application Photo, if one exists. You also referred to a Library named 2006, but what's in the Finder is 20006. Is that what you meant? You also referred to two copies of the 20006 Library, but the two in the image are two different files, one for Photos and one for iPhoto and have different names. So, can you clarify exactly what you are trying to say?

As for what happens when you migrate, Photos will create a library of its own and import all the images. It leaves the iPhoto database in place as it creates the new one for Photos. I think they implemented it this way because you can go back to the iPhoto application if the migration does not go properly. Once you have the opportunity to test the Photos database and are convinced it is complete, you can remove and delete all things iPhoto to recover the space, if you want. The reason the two file sizes are different is because the two applications store images differently. I am surprised at the name of the database, as the default name for the Photos library is simply "Photos Library." Did you change the name the first time you invoked Photos and it created the initial database?

As for the images looking different, that is probably just your perception as the two display the images exactly the same.

 

[rlm45]

Sorry, it is Photos, and date, is 20006. I have corrected it in the post.

Thanks for responding.

 

[MacInWin]

So, did my answer give you want you want? Is there anything else?

You did ask if you could delete either of the 20006 libraries. If you do, the app that uses that one will then recreate a new, empty, Library the next time you launch. All the photos in that old, deleted db will be lost. So, if you are done with iPhoto, you could delete the 20006 associated with iPhotos (check the names, it's easy to see which is which).

 

[rlm45]

Thanks, all questions answered.