Question Regarding Video Preview Thumbnails

[HouseOfCards 95]

I have a quick question relating to the generation of video preview thumbnails.  These settings...

 

 

I had initially set the interval to 10 seconds, and my cache for backups is fairly large.  I assume this option uses significant disk space, essentially saving an image for every 10 seconds of every movie.  To tweak that a bit, I changed it to only for "Chapter Markers".

My question is does changing this cause Emby to rescan and delete the existing images created every 10 seconds, or is this only for newly added media?

Thanks!

 

[Luke 42077]

Hi, it's for newly added media. You will have to manually delete the existing thumbnails and then do metadata refreshes to regenerate.

To manually delete, look for files with the .bif extension.

[HouseOfCards 95]

On 1/7/2026 at 1:24 PM, Luke said:

Hi, it's for newly added media. You will have to manually delete the existing thumbnails and then do metadata refreshes to regenerate.

To manually delete, look for files with the .bif extension.

Is it possible to just to remove the path from the library and re-add it after a short time?  Or copy a movie out of the storage location for a brief time, then re-add it?  

 

[Luke 42077]

4 hours ago, HouseOfCards said:

Is it possible to just to remove the path from the library and re-add it after a short time?  Or copy a movie out of the storage location for a brief time, then re-add it?  

 

It depends. If the .bif files are located in your media directories then no, that will not be enough. But otherwise then yes that should be fine.