Pioneer 108 to firmware Piodata . Need Help :(



hello. I have a Pioneer DVR-108 with the firmware 1.20 official.
I have read in the forum that the firmware can be changed by another called “PIODATA” to change the booktype to "DVD-ROM.

My English is very bad, so I’m asking a little help.

Retrieving data I found these pages:

What difference between these files?:

PioData% 20DVR-108DX%

What file should I choose and download? Need any command to change firmware?

Is there any version more current?

Thank you and sorry for my bad English.