# How to use Classic and keep a cloud backup of full-size originals and videos

I have no interest in organizing using CC's Collections and prefer to use folder hierarchy from Classic.

* Keep Import folder separate to catch problems! `Preferences, Lightroom Sync, Location, Specify location for Lightroom's Synced images`
* Set `Catalog Settings > Metadata > Automatically write changes into XMP` so removing from Classic to add back some data is recovered
* Video edits don't propagate, but if added to CC first, they can be moved among synced Collections

https://community.adobe.com/t5/lightroom-classic-discussions/persistent-sync-issues-in-lightroom-classic-with-dng-and-tif/m-p/13163319

## Photos < 200 MB

I get rid of sidecar JPEGs. They sometimes confuse it.

Assuming your photos are already in Classic
- Drag all photos under 200MB to "All Synced Photographs"
- Wait for completion.

To find unsynced photos in Classic:
- clear Quick Collection
- Catalog > All Synced Photos
	- Edit > Select All
- Catalog > All Photographs
	- Edit > Invert Selection
	- Add to Quick Collection
- Catalog > Quick Collection > Library Filter > Attribute > Original Photos (hides videos)

- Photos appear in CC under filter `Sync Status -> Synced from Lightroom Classic`
- Import same photos to CC (beware of > 200MB, permanent sync error)
	- Photos disappear in CC under filter `Sync Status -> Synced from Lightroom Classic`
	- Photos appear in CC under filter `Sync Status -> Synced and Backed Up`

Mismatched adds to CC come back to Classic as virtual copies or to the designated Import folder.

## Videos
I do one folder at a time.
- Select videos in Classic
- Remove from Lightroom (leave on disk). This makes them dangling files.
- Import these videos to CC. (some HEVC silently fail; must upload from web)
- Wait for videos to appear in designated Import folder
- Delete dangling files from their original folder
- Move them back to their proper location in Classic

They can now be moved to Collections and sync.

If Classic shows a greater count in a collection than CC, that video did not come from CC and is not synced.

(Is there another way to tell if a video came from CC?)

If a virtual copy shows up as "Synced from Lightroom Classic" then remove virtual and original from All Synced Photos then add them back, then add originals to CC.

exiftool "-DateTimeOriginal<CreateDate" VIDEO*.mp4 if it imports to CC as current time.