Convert rast to psd Online: rast2psd

You can use Tom's Editor to easily convert images from
Sun rasterfile .RAST to Adobe Photoshop .PSD.
Tom's Editor is a free, online image manipulation and converter program.

Go to Tom's Editor

RAST

Sun rasterfile is an image format with extension RAST.

PSD

PSD is in internal image format of Adobe Photoshop. It can store all the features offered by Photoshop, like layers and paths. Images can be compressed or not.