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DVD-Audio versus CD Audio Comparison.

Item	DVD-Audio (single layer)	CD
Capacity	4.7 GB	640 MB
Size	12cm, 8cm	12cm, 8cm
Channels	6 max	2
Frequency Response	DC~96kHz max	5~20kHz
Dynamic range	144dB	96dB
Recording Time	74 minutes or more in all modes (including 96kHz/24bits/6ch and192kHz/24 bits/2ch)	74 minutes
Max Transfer Rate	9.6Mbps	1.4Mbps
Audio Signals
Audio Signal Format	PCM	PCM
Audio Options	Dolby Digital, DTS, MPEG,etc.	_
Sampling Rate	(2 ch) 44.1, 88.2, or 48, 96, 192 kHz	44.1 kHz
Sampling Rate	(multi-channel) 44.1,88.2, or 48, 96kHz	-
Quantization	12, 20, 24 bits	16 bits
Smart Contents	6ch 2ch	-
Functions, etc.
Still images	Yes	No
Real-time text	Yes	No
Regional code	No	No
Simplified play data	Yes (SAPP)	Yes (TOC)
Interactive features
Liner note display	Yes	No
Message play	Yes	No
Website access	Yes	No
Lyric link	Yes	No

Some text taken from the Panasonic web site at http://www.panasonic.com