Archive for December, 2011

Capture Digital Video on PC using Firewire

We can easily capture and transfer DV video from a camcorder to a PC using the Firewire port. You should note however that all this is done with a DV codec software that commits the resources of the central processor. In this case, a fast processor is definitely a big help. Also, the firewire port is the ideal port to use on your PC for high speed video transfer. Firewire ports can work up to 800 Mbps which makes it one of the fastest ports on a computer. After transferring the video you can use avs4you (get this avs4you coupon for huge discount) for video conversion, editing and any other multimedia task needed for your video file..

Some useful observations about this setup:

  • The firewire connection is not just a channel that allows the transit of audio and video. In many cases it gives the possibility to control the camcorder from the PC directly via virtual buttons to play, record, stop, etc . This greatly simplifies the task of searching through the video.
  • Also, thanks to the firewire link, you can set with timelines specifying the start and end frame for each sequence. In this way the PC will be able to start the search for sequences on the camcorder tape and store them all with different names, without us lifting a finger. This technique is called “batch capture” and can be done in the background.
  • Thanks to the Firewire connection, PC can capture formats other than DV. There are very few capture devices that use this connection to capture MPEG2. In these cases, the PC has to carry out an operation of recompression and conversion of native DV format to MPEG2.

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Be careful when using public Wi-Fi Hotspots

According to the findings of a global survey from Online Security Brand Tracker, conducted on behalf of ESET (April-May 2011), nearly 50% of Internet users are using portable devices as their primary connection. The most popular devices used for Internet connectivity are notebooks (41%), followed by netbooks (3%), smartphones (2%) and tablets (1%).

When you’re in an airport, you open your laptop to read or send e-mails, looking for a free Wi-Fi hotspot. And there it is! You almost always find one and connect to send and read your e-mails etc. What you do not take into consideration is that the free Wi-Fi may have a privacy cost associated with it: the data of your connection, your personal details and other important information can be stolen when you send your message, without having any idea that such a thing could happen. Before you know it, you’re calling Lifelock for identity theft protection because your personal information has been stolen, and soon, your identity.

What should make you suspicious is when there is a Wi-Fi hotspot with a name that is not recognized or resembles an official or even a celebrity name. Also, the user must be particularly cautious in hotspots that do not need password protection for access. The ‘magic’ of the data theft happens through a proxy technology, which monitors the Wi-Fi communication and captures and stores a copy of all your data on the hacker’s laptop. This process will slow down the traffic speed of your connection but in cases of networks with many users it is difficult to say with certainty whether the slow traffic is due to the theft of your data or because there are many users connected simultaneously.

Each time the user performs a task on the internet, whether buying staff online, checking your bank account or checking of email, the computer must send the login to the network, which is a goldmine for fraudsters on the internet. Under normal conditions the connection to a secure site (such as your bank site) must start with “https” instead of “http“, which means that traffic is encrypted. Some sophisticated hackers can even steal your encrypted communication (by proxying your connections through their own computer). For this reason, extreme caution is required when giving personal information and passwords in a public WiFi hotspot.

The threats to be aware while using public Wi-Fi:

  • Evil twin login interception: networks set up by hackers to resemble legitimate Wi-Fi hotspots.
  • 0-day OS / app attack attempts: attacking your computer and applications in order to get access to it using unknown and unpatched vulnerabilities.
  • Sniffing: software or hardware that can capture and record the traffic passing over a network.
  • Data leakage (man-in-the-middle attack): Cyber-criminals who can modify network traffic, leaving the impression that the user navigates the website of a bank for instance, while, in reality, traffic is passed first through the attacker’s computer.