Understanding system performance

Many of my readers have been involved with setting up streaming servers and/or encoding workstations, and a popular question is how to maximize performance. An important aspect of a system’s performance is its memory bandwidth, and Ars Technica has a great article that you’ll be glad you read next time you’re setting up such a system.

The peak bandwidth of a bus is the most easily calculated, the largest (read: the most marketing friendly), and the least relevant bandwidth number that you can use to quantify the amount of data that two components (i.e. the CPU and RAM) can exchange over a given period of time.

The truth is out there, etc.

BMG moves to copy protect CDs worldwide

BMG is apparently moving to use copy protection on all of their CDs. You’d think that they’d have learned after effectively killing Natalie Imbruglia’s career by using Cactus Data Shield on her last (and probably last, nudge nudge wink wink) CD, but apparently more artists must be sacrificed.

According to a BMG unit in Kopierschutz, Germany, “There will be no cd manufactured without copyprotection any more.” This was in response to a customer who asked how they could get a CD, rather than the CD-looking thing they’d inadvertantly purchased that wouldn’t play in their CD player. It turns out that the U.S. version of the album in question won’t be protected. But…

If BMG is seen as experimenting on Europeans while leaving truculent Americans for another day, it might be subject to a certain amount of adverse publicity, and sales of the local market products might just collapse.

This is a classic case of backwards marketing — doing something that (you think) benefits you, rather than doing things that (at a profit) benefit your customers — and BMG will pay for it. I will personally avoid purchasing BMG discs if at all possible, and if it’s an album I really want, will wait until a cracked version is also available.

So if the artists lose, and the labels lose, who wins? Macrovision, who is aquiring the the Cactus Data Shield and SafeAudio “technologies” (which are really just methods of creating CDs outside of the official specification, after all). It will be interesting to see how record labels react to Macrovision fiddling while Rome burns. Link

RealNetworks' new (MPEG-4!) product

RealNetworks’ new encoding tool, Mobile Producer, creates content for 3GPP-compliant devices. Envivio — the France Telecom subsidiary whose software RealNetworks used to support MPEG-4 in their platform — is creating the new product in partnership with RealNetworks.

3GPP is the Third-Generation Partnership Project, an organization that brings together several telecommunications standards bodies to define standards for 3G mobile devices. 3GPP has standardized on MPEG-4 for 3GPP-compliant devices. Link

Great new QuickTime 6 book

My friends Judy and Robert have published a new QuickTime 6 edition of their wonderful Visual QuickStart Guide to QuickTime.

The book is great, they’re great, and if you want to understand the zen of QuickTime and learn how do do cool things with it, you should buy Posted in QuickTime

Even pirates need parrots

First, a caveat: KaZaA is known to include spyware, and I would never personally install it — or recommend that anyone install it — unless the idea of corporations profiting from the use of their computer without their permission appeals to them. That being said…

The NY Times has an interesting article about turning people that steal music (i.e. KaZaA users) into (gasp!) customers by offering them products and services that they’ll find valuable. The way it works is that people are presented ads based on what they’re searching for — people searching for Some entertainment industry lawyers fear that if Sharman [Networks, KaZaA's distributor] can prove that KaZaA has legitimate uses, it will be harder to shut it down. Others, however, say that by displaying some material more prominently than others, Altnet’s service helps to prove their point that KaZaA could block all copyright material from appearing in its search results. Sharman has maintained that it has no way to control what files users chose to use the KaZaA software.

KaZaA will fail, not because of RIAA hacking but because they’ve lost the trust of early adopters. The record industry will continue to be too clueless (or too proud) to come up with innovative ways give the people what they want. Link (free registration required)