Alpha channel: using JPG, how to don't save it?

[bardo]

As subject...
If I want to save an image from the VFB using the JPG fiel format, what should I do to don't save a separate JPG file for the alpha channel?

Thanks in advance

[bardo]

sorry for the bump, but if it's not clear I try to explain better.

When you finished a render and you want to save the image in JPG file format, Vray saves the RGB and the Alpha channel in separate file.
Due to the JPG file format, I know I can't save the alpha but if I'm sure that I don't need it, where could I set something to avoid this?

Thanks

[bdancer]

There is a control "Separate Alpha" under the Output panel. Check if it's turned off.

[bardo]

Ok but turning ON the output panel, Vray save everytime the file.

So now, I'm not sure it will be possible, but if I keep OFF the output panel and I use the VFB save button and I use the JPG format I'll have always 2 files: RGB and Alpha jpgs.