[ivtv-users] firmware difference?

[engage]

What's the difference between ivtv-firmware-enc-1.18.21.22301_inf-2plf and 
ivtv-firmware-20070217-1plf2007.1 - I installed 
ivtv-firmware-enc-1.18.21.22301_inf-2plf because it supports both the pvr150 
and 250 while ivtv-firmware-20070217-1plf2007.1 description said that it 
supported only the 250 and 350 cards - i have both a 150 and 250 card in the 
same box but dmesg states that the firmware loaded for only ivtv1. Also, 
ivtv-firmware-enc-1.18.21.22301_inf-2plf wouldn't work - dmesg stated that 
the firmware was missing.