P: Support cataloging PSB files

The truth is, we threaten we are going to switch, but not enough people actually do it.

The original request was 8 years ago to ask Adobe to support their own format in Lightroom. Like many other photographers I run into the size limit often when using a high megapixel camera and doing focus stacking, exposure blending in Photoshop.

ON1 has no problems working with PSB files and I am having to consider switching products.

I wish Adobe would make it a priority, add this request to the just do it list and release support for PSB with the next update.

The PSB format is identical to the PSD format, except that it allows for larger file sizes. Both formats already contain such a preview, the so-called "compatibility layer", which is a composite of all the visible layers. LR uses the compatibility layer to build the catalog previews of PSDs.  The engineering effort to do the same for PSBs is minimal -- see here for more details: 
https://feedback.photoshop.com/photoshop_family/topics/lightroom_support_cataloging_psb_files?topic-...

Can Adobe create a new version of the psb format that contains a preview so that LR does not have to build it on the fly, allowing them to overcome the issues with displaying them in LR catalogues even if they still needed to be edited in Photoshop?

And to add another take to this, I've been scanning hi-res images and three or four images into this the maximum for tif becomes 2.4? Not even near 4 gb. So I wind up here with asking for Adobe products to support Adobe file formats.

"I pasted in a small item to overlay and it doubled the size of the PSD. What's going on there? PSD is not keeping track of layer data and then using instructions to recombine?"

This is best posted as a separate topic in the Photoshop category. When multiple feature requests are combined in one topic, Adobe and other users tend to miss them.

"Let me work on PSD that are > 2GB"

The PSD file format inherently limits the maximum file size to 2 GB, because it uses 32-bit integers to represent offsets within the file (2^31 ~ 2.15 GB). The only way to increase that limit is to use larger integers in the file format, which is precisely the PSB file format.  Thus, to handle Photoshop files larger than 4 GB, LR needs to be able to read PSBs, which is a very modest amount of engineering.

For files of size between 2 GB and 4 GB, saving in TIFF format works well, and LR can read and edit those TIFFs. But obivously, it would be better if you could just use PSB format in all Adobe programs and not worry about file sizes.

Surely the 2GB limit is an older hardware limit? I was working with a large PSD in PS and I pasted in a small item to overlay and it doubled the size of the PSD. What's going on there? PSD is not keeping track of layer data and then using instructions to recombine? I can save it all in PSB but >> then I can't work it in the raw converter nor Lightroom which has vastly superior image adjustment options. I want to know when PS and LR will be useful again for me. My company builds and prints very large panoramic prints. 

I am a daily user of Adobe Bridge as an image editor and retoucher, one thing we look for is ensuring our images on white are fully on white (ie. no particles or lines around the border of an image). Older versions of bridge allowed the changing of background colour while in filmstrip view and this allowed us to change the background from black to grey to full white. Please reimplement this feature into the newer versions of Bridge CC. 

In the new bridge 2019 you can no longer change the background color behind thumbnails, I work with many images that have white or very light grey backgrounds. Having a white background behind them is crucial to discern if their color fill layer is missing. Please bring this option back! Changing the color theme is not meeting my needs.