My all time favorite mobile browser Opera Mini has launched the beta of their next version which offers feature that can blow you off. Earlier Opera Mini v4 was lacking certain features that have been implemented in this version. If you are unaware of Opera Mini, it is a phone browser which is capable of bringing the power of whole internet into your cell phone. It is also faster and delivers pre-compressed pages so that you are charged less for your data usage plan and pages are loaded faster.

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You must have seen those images that keeps on changing and looks like an animation but in reality they are animated gifs which holds the information of showing multiple images after a pre-specified time interval. There are many online tools for creating animated gifs but today I am going to share a simple freeware portable tool named UnFREEz that you can use to create animated gifs in 30 seconds.

You need to have multiple gif images of same size before you can use UnFREEz to unfreeze the static character in them and make a live animated gif in a few seconds.

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You can convert images from one type to another by using either of the many options available but when you need to convert multiple files it can be a pain. So today I am going to write a tutorial explaining how you can use Irfanview for batch processing of images i.e. converting / renaming multiple files at once.

If you are not aware of Irfanview, then I must tell you that it is one of the best free image viewer that can be used for basic image editing too and that too very easily by a average computer user. You can read the Review of Irfanview which I wrote earlier.

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It happens with me many time that I had to copy some files from my pen drive to our college lab and the moment I plugged in my pen drive, it gets infected with dozens of viruses. Yes, its true that our college labs are too infected. Now before I can use the pen drive again, I need to make sure to clean it first so that the virus may not spread on more computers. I scan for my pen drive using NOD32 and no doubt it completely remove all traces of virus but it wastes my time as I always have over 2 GB of files that I carry with me all the time.

So I came to know of this trick of write protecting the drive so that I can safely copy things I want without the worry of virus being copied on my USB drive. Although you won’t be able to write any thing on your pen drive, its still very useful in case you want something to copy from your pen drive and don’t want to get infected. Before proceeding I must tell you that playing with the registry can be harmful for your Operating System (OS) and I advise you to take a backup of your registry in case anything goes wrong. Read how to  Backup Windows Registry.

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Another month is over and I am ready to publish my stats for the month of march. I was to publish it yesterday but I didn’t as I have something serious to say and that should not be taken as a April Fool Prank. So I am going to say it today. Before that here are the stats and I encourage you all to subscribe to me feeds if you like the content of this blog.

March 2008 Blog Statistics

• Visits: 7,999
• Pageviews: 10,576
• Pages per Visit: 1.32
• Bounce Rate: 82.04%
• Avg. Time on Blog: 52 seconds
• %New Visits: 93.30%

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What is md5sum?

According to Wikipedia, md5sum is a program which calculates and verifies 128-bit MD5 hashes. The MD5 hash (or checksum) functions as a compact digital fingerprint of a file.
It is extremely unlikely for two non-identical files to have same md5sum as calculated by hashing algorithms (however the theory says something else).

What is the use of md5sum?

md5sum can be used as a general purpose file integrity verification. md5sum of any file will change if even a single bit of code is changed in the file. That means it can be used to verify the file. If any changes were made in that file, its md5sum will change for sure. This include changes from file transfer, disk error, medling etc. However a cryptanalytic attack on MD5 algorithm has been found which means a method has been to calculate a file that will have a given md5sum in less than time required for a bruting force attack (link old post here). So, MD5sum can’t be used where security is concerned but just where normal file integrity verification is required like protection against random bit flips.

How to calculate md5sum of a file?

In Unix, Linux, BSD variants (including MAC OS X) youdon’t need to install any third party application for checking md5sum, this facility is provided within the OS only. To know how to use it, follow this link on Wikipedia.

However Window users can’t do it without installing any third party application. If you are a Window user, give a try to MD5 Calculator which is a freeware and just 361 KB in size.

Download MD5 Calculator (Freeware - 361 KB)

Even I was aware of md5sum a few days back but then a little research did the job. Was you aware of it? Share your thoughts in the comment.

Everybody is connected to the internet almost all the day by means of either regular internet connection or through smartphone. Atleast I do and I am sure many others also do the same. But still there are some users who don’t have the facility of being connected all the time. Either they have some financial problems or hard luck.

I can include myself in the community of hard luck as I don’t have a Broadband connection in my college hostel and I have to use Dialup for connecting to internet as my college is in the outskirts of Jaipur. Coming back to the point. Other than blogging, I love to read about what others are making a buzz about but I don’t even have a personal computer or laptop here, in hostel, I find it difficult to track my feeds. So I started looking for a workaround in which I can carry my feeds on my pendrive and then read it anywhere whenever I get time. My search was ended in a few minutes as I found this great portable application : Portable Feed Reader and the best part being that it don’t even cost a penny. It is a freeware. Now many dialup users or mobile computer users can carry their feed with themself and read it at their will.

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