I'm experiencing exactly the same problem than Stefan in
https://www-secure.symantec.com/connect/forums/pgp-recovery-disk-usb-stick-bootable.
I've created the recovery disk on USB, using the 10.3.0 ISO file in your website, managed to boot from it, gotten to the PGP screen and, after searching for a while, I got the "PGP Recovery Disk could not recognize PGPWDE Installation on the disk, unable to continue" error message.
I see Stefan has found a solution, but I don't see it.
Can you please help?
Thank you in advance.