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Snail Mail Still Winning The Bandwidth War
LR_none writes "Today's New York Times has this short piece suggesting snail mail is the leading broadband technology, at least for video movies on demand. The article states that the 8 to 9 gigs of data on a DVD would take two weeks to download at 56kb, making Netflix' three-day distribution by mail seem speedy. (Since they can send three or more movies at once, Netflix compares favorably with DSL download speeds, too.) The author estimates Netflix alone distributes 1,500 terabytes a day, which is impressive considering the Internet carries 2,000TB a day (by estimates cited in the article). The 'immediate gratification' aspect of Internet consumerism has given a huge boost to companies like FedEx and UPS, but it's surprising to think of the post office as being the leading infrastructure provider for digital entertainment, in terms of market share and efficiency, for the forseeable future. (Disclaimer: I don't work for Netflix or the post office.)"
...never underestimate the bandwidth of a station wagon full of tapes.
if you live on the East Coast, forget about it. Mail takes 5 business days, coming and going, making Netflix not all that cheap. If you get the basic service (3 movies at a time), if you watch the movies THE DAY you get them and send them back immediately, you still can't realistically get more than say, 6 movies a month. If Netflix opened a warehouse on the East Coast, shit, I'd get the best damn service they've got. If not for that huge mail lag for us on the East Coast, their service is fucking fantastic.
To wit, from everyone's favorite echoing news site: link. They should have them in Boston, NY, and DC.
Fortran programmer...oh yeah. Array math for life!
1 gig takes 2-3 weeks over a dialup connection.
One gigabyte, divided by 5 kilobytes per second (average effective downstream rate for "56K" dial-up given line noise and TCP overhead), equals 200,000 seconds, or just under 56 hours. At that rate, an online DVD store would have already shipped the package.
CheapBytes: the fastest way for dial-up users to get an OS distro.
Will I retire or break 10K?
Actually the baud rate of a station wagon filled with backup tapes is horrible. The bandwidth however, is astounding.
I've yet to experience significant "packet loss" from Netflix, and I go through about 16 DVDs a month with their service. Since February, I've received 1 disk I couldn't read, and one disk that was broken (but I think I stepped on that one).
Packet loss is negligible.
Any sufficiently well-organized community is indistinguishable from Government.
Unfortunately, they seemed to have gotten rid of all their "mature" titles after they went mainstream.
Magnus.
IANAA (I am not an archeologist) but the oldest reference to such an expression on groups.google (they need a Oldest first option...) that I could find was this post wich states:
Never underestimate the bandwidth of a station wagon full of mag tapes.
-- Dennis Ritchie
The quote is attribuited to Dennis Ritchie.
coffee | nose > keyboard ©
Maybe Netflix distributes 1,500TB a day of movies, but that's using DVD's MPEG-2 compression. Encode 'em with DivX and you're gonna slash that figure by what... 80-90%?
I joined Netflix, one of the first of the DVD rental mailer companies, a long time ago and like it a lot. I was interested, then, to read a rough calculation that, in terms of 190,000 MPEG-2 format DVDs, Netflix's daily bandwidth totals 1.5 TB. This is a sizable fraction of the current total estimated Internet daily bandwidth: somewhere between 2-4 TB. Of course, Peter Wayner's calculations do not allow for the online delivery of movies in more compression-efficient formats, such as the MPEG-4-derived DIVX, where a typical 4-7 GB DVD can be reduced to around 700 MB with minimal quality loss.
I guess the CD manufacturers also thought they were safe, when a typical CD occupied 700MB of data in an era of mainly dialup connections. Then along came MP3 with its one-tenth compression ratio and so much for that idea. Netflix's current success is a temporary artifact of our restricted bandwidth and lack of suitable MPEG-4 hardware players.
And I found out from some surfing that some Netflix competitors, such as CafeDVD, QwikFlicks, and DVD Avenue, are cheaper and offer porn, something Netflix avoids.
Da Blog
You're doing the math wrong. Assuming broadcast quality video needs 5MB, a 70 channel cable system needs....5MB. A 400-channel cable system needs 5MB. Ever notice how you're never watching more than one channel at once? Maybe a little more to download guide data. But your cable line isn't 300MB.
"Moderate drinking can help prevent amputated limbs" -- Abigail Zuger, NYTimes, 12/31/02