is there any software/or burner that could duplicate the same sampling rate of the original one when you burn them into CD-r's?
Not possible to cdr. Possible to dvd using dvd-a format, which allows up to 24 bits and 192 khz.
The software DVD-Audio Solo has a trial mode that allows you to burn up to 5 dvd-a disks free of charge, then to continue using it you have to pay $45
. There is free software for this somewhere in Sourceforge, but I found it difficult to use.
Alternatively, you can simply leave these hi-res flac files in your hard disk and play them straight from the PC. I have configured Foobar2000/Wasapi to output 24 bits, 192 khz via SPDIF to an external DAC, which then feeds the analogue signal to the amp.