Regardless that I set TVR's capture properties as 48 kHz, why am I finding the capture results in a 44.1 kHz audio, ref. PVR's suite w/TVR version 2.0.2.2?

Aside from my setting TVR's capture for 48000 Hz audio, I also set it for DVD-NTSC and yet the resulting file's audio Sampling is 44100 Hz (w/Audio Layer-II w/224 Kbit/s) and when I try importing the .mpg file, it fails at importing into PVR'TVR's Burn DVD (3.1 SE) application (prompts the file's audio sampling rate is not 48 kHz, DVD spec violation).

Other aspects of the resulting file are; "MPEG-II" system file, 0 bytes/s mux rate, 720x280, 29.97, 8000000 bit/s bit rate.

I got that prompt the 1st time I tried importing this file, but the 2nd time, HT Burn DVD 'crashed' (i.e.; 'encountered a problem and needs to close' w/more info denoting 'AppName: burndvd.exe, AppVer: 2.0.0.4, ModName: unknown, ModVer: 0.0.0.0, Offset: 0718ef80').

File size is 3.99 GB and 4.00 GB.

The issue (workaround converting the file w/SUPER) exaserbates the DVD burning time.

And I find it odd that all SUPER's 'default' mpg audio sampling freq's are 44100 and everything I see about DVD burning requires 48 kHz audio, so how come SUPER offers no default 48kHz mpg?

I'm at a loss as to what's going on with both TVR's capture settings/results and again by SUPER's default settings.

Any insights?