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It remains a hoax, you are upsampling something that was previously sampled and already misses some data, now you adding something in the missing spaces. I guess it is the same as taking a picture with one an old old generation 640 x 470 camara camera mounted in a satelilete and upsampling it to some multi-megapixel resolution and then reading the numberplate from 500 miles away. The Americans have done this for ages I guess, just watch some spy movies.

You guys talk about up-sampling. What would you imagine does the computer put into these added slots of "samples". Upsampling is a hoax.

This is what you need. A brick-wall switched capacitor filter that is easily implemented and adjustable for a wide range of frequencies. You would not get much better than this eights order elliptical filter. Switched Capacitor Filter MAX291-MAX296 .pdf

I have tried different hard drives external (USB) one internal (SATA) and another (IDE) and I am sorry to report there is absolutely no difference what-so-ever. Data is being buffered so what does it matter what comes off the discs, or are you saying the the BER of Sata is so high that the data on disc and what is being converted by your audio card or DAC is actually so different. Sorry sandyk this is a general remark and not one aimed at you personally, but a new member here evaluating ideas and experience of a wider spectrum of music listeners and lovers. Unfortunately reviews on the internet are more often absolutely meaningless and consists adjectives added to equally nebulous descriptions of subjective perceptions written by anyone who has mastered the skill of typing regardless of age gender, qualification or anything other than their own perception of their abilities. You refer to a well qualified Sydney EE who impresses you with his abilities as an EE, what if he is actually tone deaf, it would make no less of a well qualified Sydney EE. When you talk about system noise I beg to differ, digital data is free of noise and it depends on your conversion method from digital to the analog domain and the accuracy of the method. If there is any noise due to digital uncertainty then blame the converter. Kindest regards Nico

One cannot argue the facts - Higher quality Sata cables reduces spelling errors in Word documents, decreases computational errors in spreadsheets, generates far more accurate drawings in AutoCAD and last but not least improves the sound quality of digital music. What more can one say.

Does checksum of a data file change?????