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Hi just wanna ask which type of CD better in term of SQ ?? Price range from 40++ dollars above ?

The Extended Resolution Compact Disc (XRCD) from JVC brings the listener higher fidelity and improved audio quality by enhancing the process of mastering and manufacturing compact discs. All of this is done within the current CD standard, so no special cd player or decoding box is needed to hear the benefit of the xrcd. The xrcd process starts at the mastering level. The analog signal is taken directly from the mastering console and digitized using JVC's 20 Bit K2 Super Coding. The K2 is a 20 bit, 128 times over-sampling analog to digital converter which provides a dynamic range of 108 dB, -96db THD, flat frequency response in the passband to within +/- .05dB, and a substantial reduction of harmonic distortion for low level signals. The K2 Super Coding also provides a bit down mode to convert 20 bits to 16 bits, and interface signal reshaping to eliminate time base jitter in the digital data stream. [/size] Another K2 circuit, called the K2 Laser, is used to reshape the EFM signal right before going to the laser of the glass cutter. This last stage is the same circuit used for the K2 Super Coding interface, which eliminates any time based jitter that may be present in the data stream. Throughout this process, the word clock is amplified and distributed to the other stages to keep signal quality at a maximum. Similarly, all equipment is run off regulated AC power feeds to provide a pure base from which to work. All cables and connections between equipment use the SDIF-2 interface for sonic quality and music integrity. Tests determined the SDIF-2 offered a superior transmission of digital audio, far above the AES/EBU standard. A variety of materials, including 24K gold and pure copper were tested. Ultimately aluminum was decided upon after extensive listening tests. The end result of this manufacturing process is the highest quality digital transfer from mastering to compact disc. [/url]All of this attention to detail allows the listener to enjoy the music just as the artists, producer, and engineers originally intended it. Every nuance of the performance is duplicated as it was recorded, with higher accuracy in both sound quality and imaging.