ReplayTV 5000 Series

For MPEG-2 usage with the 4000 series, visit the ReplayTVMPEG-2Usage section.

Quick Reference

QualitySetting	Resolution	Video Bitrate	Audio Bitrate
High	720x480 (D1)	9Mbps VBR	192 kbps
Medium	720x480 (D1)	7Mbps VBR	192 kbps
Standard/Extended	352x480 (HHR)	2MBps VBR	192 kbps

Although the streams are all VBR (Variable Bitrate) the MPEG header shows a constant or nominal bitrate. It should also be noted that High can peak at 12Mbps which is incompatible with DVD specifications which max at 9.7Mbps.

Technical Profile

Parameter	Setting
System Stream Type	Program
Video Standard	NTSC
Video Compression	MPEG-2
Video Bitrates	(see above)
Resolution	(see above)
Frame Rate	29.97 fps
Drop Frame Flag	Not Set
Constrained	No
IQ Matrix	False
Non-IQ Matrix	False
Aspect Ratio (Standard)	4:3 (640x480)
Aspect Ratio (High/Medium)	4:3 (720x540)
Sequence Format	Interlaced
Field Order	A (top first)
Chroma Format	4:2:0
Profile/Level	MP@ML
Color Primaries	SMPTE 170M
Transfer	SMPTE 170M
Matrix	SMPTE 170M
Quantizer Scanning Pattern	alternate
Quantizer Scale	1
Intra DC Precision	8
Intra VLC Format	0
Audio Compression	MPEG-1 Layer 2
Audio Stream	Stereo, 48kHz
Audio Bitrates	(see above)
Frame Length	24.0 ms (576 bytes)
VBV Buffer	112 / 224
VBV Delay	65535
Minimum Buffer Size	229376 bytes

MUX Rates

All measurements are bits per second

QualitySetting	System	Video	Audio
Standard	2028400	1726000	192000
Medium	7680800	7413200	192000
High	3332400	9800000	192000

Notes and Issues

System Stream

For some reason High's system mux rate is lower than what is actually used. Not sure why this is.

The 5000's encoder appears to have a substantial a/v delay, sometimes close to a full second.

Video Stream

Audio Stream

-- LeeThompson - 21 Dec 2002

I've seen bitrates above 15Mbps

-- JeffD - 02 May 2003

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