Trouble patching DOOM2

First of all a thousand thanks to the Legacy Crew: You guys really rock!

My problem:
I want upgrade DOOM2 V1.666 to 1.9. My .WAD is restored from a crashed CD-ROM with cdrdiag. All 3 patches I tried failed. I think it is the wrong filedate which is 23.11.1999(the day I restored).
Any ideas how to find out which version I got and which patch I need?

Go to http://www.clanvile.com on left of page under "doom2" "essential files" is a patch d2_16_19 download and unzip to doom2 folder
run updgrade.bat you may get an error(ignore) but it fixes the date error generated by other patches
then run phase_1.bat this can take a while and even look as if its stuck , be patient
then run phase_2.bat
file size of doom2.wad at end should be 14,604,584 bytes

mailed you a last resort patch.

Thanx for your support!

The patch from clanvile.com worked fine for me.

Another solution would have been to set your clock back to the moment the iwad should have had the date to and 'touch'ed it