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<blockquote data-quote="mm1352000" data-source="post: 801067" data-attributes="member: 82144">Just a small clarification: the stream data rates for the PVR-150 and Colossus are in Mbps (that is mega bits per second). The estimates are possibly a little high (20 Mbps is the maximum video stream bit rate for the Colossus) but not too far off. Traditional HDD sequential read speeds go from [very] roughly 120 MBps and to around 40 MBps (that is mega bytes per second) depending on read size. Maximum sequential write speeds are usually slower. See --&gt;<a href="http://www.tomshardware.com/reviews/hitachi-western-digital-terabyte,2017-6.html" target="_blank">here</a>&lt;-- as an example.Anyhow, the point I wanted to clarify is that 1 MBps is 8 Mbps. Recording or playback of 100% quality HD Colossus streams only requires the drive to operate at 2.5 MB (20 Mb) per second. That is not usually a problem unless you have a really full 5400 rpm drive that is used for OS and timeshifting and recording and other stuff. I use a green drive (~5900 rpm) here and can easily record 3 HD streams while watching one and working with the data on the same drive in other software...mm</blockquote>

[QUOTE="mm1352000, post: 801067, member: 82144"] Just a small clarification: the stream data rates for the PVR-150 and Colossus are in Mbps (that is mega bits per second). The estimates are possibly a little high (20 Mbps is the maximum video stream bit rate for the Colossus) but not too far off. Traditional HDD sequential read speeds go from [very] roughly 120 MBps and to around 40 MBps (that is mega bytes per second) depending on read size. Maximum sequential write speeds are usually slower. See -->[URL="http://www.tomshardware.com/reviews/hitachi-western-digital-terabyte,2017-6.html"]here[/URL]<-- as an example. Anyhow, the point I wanted to clarify is that 1 MBps is 8 Mbps. Recording or playback of 100% quality HD Colossus streams only requires the drive to operate at 2.5 MB (20 Mb) per second. That is not usually a problem unless you have a really full 5400 rpm drive that is used for OS and timeshifting and recording and other stuff. I use a green drive (~5900 rpm) here and can easily record 3 HD streams while watching one and working with the data on the same drive in other software... mm [/QUOTE]

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