SxS Card rescue

[zvit]

I filmed video with an 8GB SxS SONY card and I was near the end of the disk space and still needed to film more so through the camera browser, I deleted some of the clips I filmed at the beginning (to get some more space back) and I accidentally deleted a very important clip.

I then continued to film until the card was completely full.

I know that there are forensic methods to restore overwritten data but I want to know if there is also software that can do this.

I have tried some recovery programs like:
Ontrack EasyRecovery Professional
Stellar Phoenix Windows Data Recovery
EASEUS Data Recovery
PC Inspector File Recovery
GetDataBack for FAT

but only 2 found something:

One found some Mp4 clips but I can't play them in any player. All players say that the file is not readable.

One found the missing file but it won't let me recover it. It has a picture of the file with a red X on it and when I choose it, the "recover" button turns gray.

Any ideas?
Thanks

[hddguy]

I know that there are forensic methods to restore overwritten data but I want to know if there is also software that can do this.

There is no software capable of this.

Your data is gone.

[Alexii]

yup. sry man but overwriten data is lost.

[drc]

forensic methods to restore overwritten data

This is false. Doubly so on a flash card.