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Sunday, June 25, 2006

Blu-Ray is out, and so far, it does not compare to HD DVD

Today is the official launch date for Blu Ray players from Samsung, and a host of movies to go along with it.

Like HD DVD it actually broke street date from various retailers and has been in enthusiasts homes for a little over a week now.

From reports on various forums I have read, it was simply not ready for launch.

I am going to skip right to the meat of the contention. Compared to HD DVD, Blu-Ray just isn't ready for prime time. Currently all BR discs are currently encoded with a less efficient codec called MPEG-2. While it is scalable beyond current DVD encoding and can deliver a great high definition picture, it simply uses a lot more space than the VC-1 codec that the player is capable of using. This is resulting in movies that have artifacts and macroblocking that is especially more visible in fast motion action scense. Think speeding cars on a street and building backgrounds whipping by. When viewed in a similar instance on HD DVD, there is simply nothing but an excellent picture. Take Serenity close to the beginning of the movie with the Reavers chase scene, that background with mountains and trees, are a sight to behold. On DVD and broadcast HD, it would be jumbled blocky pixelated mess.

The other gripe is about one of my favorite Sci-Fi movies, The Fifth Element. Reports are that the movie was mastered from a damaged print, where dirt and scratches are highly visible in the image and that overall, it really doesn't offer more than the Superbit version on standard DVD.

How could Sony launch this format in its current incarnation? I would rather wait for a product a bit more and be released correctly, than rushed out of the gate because it is tired of playing catch up. If it is truely superior, then care for it and manage it to the best possible conclusion. I really don't see what is so difficult about that. I am sure that picture quality will eventually improve, but if I was a first gen BR supporter, I would be right miffed at the current state of things.

Sunday, June 11, 2006

Subnetting

The part of CCNA study I feared and dreaded the most: Subnetting.

Subnetting always kicked my ass when I took a glance or cursory look at it. Sure converting Binary to decimal was easy, even identifying what a /23 in a network was. But how to take an IP address and a subnet mask, then figure out how many subnets you can get off that particular IP address, how many hosts per subnet, and what the valid IP ranges are with the proper broadcast address and all that jazz was just too much for me to aborb.

Power of 2 for the WIN!

Once you realize that subnetting relies heavily on caluation using the powers of 2 then subnetting is pretty much easily learned.

I also believe I have good reference of the OSI model now as well. I am now back filling the knowledge by going over the first couple chapters of Lammles Sybex book for CCNA, now that I am about halfway done with the CCNA for Dummies book which I am using as a primer /overview of the information I need. So far, it seems to be a great combo.

Sunday, June 04, 2006

CCNA Studies are underway.

Now that I am HDA certified and I have that behind me, I have started my CCNA studies for the 640-801 test.

I hope I can pass this on the first try.

I am going through studies first with the CCNA for Dummies book for a primer of core concepts. The book gives a pretty straight foward and easy to understand concept of things in the world of Cisco.

I plan to follow up with the beefy CCNA Study Guide from Todd Lammle published by Sybex, and then follow up with the Fast Pass book by the same author.

All the while I plan on getting a subscription to How2Pass.com for practice tests and simulations.

From there, I will likely start some MSCE studies.