Wednesday, February 4, 2009
What is DvdRip??
All the time i use to download the movies i used to see the stuff like DVDRIP by AXXO or KLAXXON.I used to wonder what this could mean? Lately when i searched i found the following Answer
What Is Ripping?
Ripping is the process of copying audio or video content to a hard disk, typically from removable media or media streams. Digital audio extraction is a more formal phrase applied to the ripping of audio CD's. Ripping is distinct from simple file copying, in which, the source audio/video is not formatted for ease of use in a computer file system.
For example, the hierarchy of files making up the audio/video data on a DVD-Video disc can be encoded into a single Avi file. In addition, the copied data are often compressed with appropriate Codecs. Ripping is often used to shift formats, and to edit, duplicate or backup media content. Media files released on the Internet may describe the source of the rip in their names.One among the many ripping styles is DVDRip.
I have also seen PreDvdRip,but am not sure of what it is!!
A DVD-Rip is a bootleg video ripped from a DVD source and then released on the Internet in a new container that is easily downloadable such as DivX, XviD, MP4 AVC, or more recently, MKV.
For the most part, DVD-Rips range from from 300MB in size (MP4 rips) to 1.36GB (2 CD releases with AC3 audio) with the larger releases with quality comparable to the full DVD it had been ripped from.A DVD ripper is a computer program that facilitates copying the content of a DVD to a hard disk drive. They are mainly used to transfer video on DVDs to different formats, to edit or back up DVD content, and for converting DVD video for playback on media players and mobile devices. Some DVD rippers include additional features, such as the ability to decrypt DVDs, remove copy preventions and make disks unrestricted and region-free.
I have never Ripped any till date as it is illegal in most parts of the world.In USA ripping is legal for the Software Backup's, but ripping the music Cd's is a punishable Offense.But for the people Who want to try it out and keep the copies in their home,Here are some of the Links for the Software u could use for Ripping.
I have now realized how piracy has grown up so much!!!
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Sunday, November 2, 2008
Different Microsoft Processes And What Are They?
Most of us would have tried a three finger trick on XP and further OS by microsoft..The combination of alt+ctrl+del gives us the taskmanager..Here under processes you can get a number of process that are running.Have you ever wondered what exactly these processes do??Read more to know....
Svchost:In software Svchost.exe is a generic host process name for services that run from dynamic-link libraries (DLLs) within the Microsoft Windows operating system.At startup, Svchost.exe checks the services part of the registry to construct a list of services that it must load. Multiple instances of Svchost.exe can run at the same time. Each Svchost.exe session can contain a grouping of services. Therefore, separate services can run, depending on how and where Svchost.exe is started. This grouping of services permits better control and easier debugging, but it also causes some difficulty for end users wishing to see the memory usage or vendor legitimacy of individual services and processes.
Winlogon.exe:In computing, Winlogon is the component of Microsoft Windows operating systems that is responsible for handling the secure attention sequence, loading the user profile on logon, and optionally locking the computer when a screensaver is running (requiring another authentication step). The actual obtainment and verification of user credentials is left to other components. Winlogon is a common target for several threats that could modify its function and memory usage. Increased memory usage for this process might indicate that it has been "hijacked".
Lsass.exe:Local Security Authority Subsystem Service (LSASS), is a process in Microsoft Windows operating systems that is responsible for enforcing the security policy on the system. It verifies users logging on to a Windows computer or server, handles password changes, and creates access tokens. It also writes to the Windows Security Log.Should the lsass.exe program end, for example, by the Sasser worm's effects, then a countdown timer will appear on the screen, advising the user to save their work and close all programs before Windows shuts down. This timer, however, can be thwarted by changing the computer's date and time settings or by executing the shutdown -a command.
Ctfmon.exe:ctfmon (ctfmon.exe) is a process used by Microsoft Office to activate the Alternative User Input Text Input Processor (TIP) and also the Microsoft Language Bar. Ctfmon is also a component of Windows XP Tablet PC Edition and Windows Vista which enables advanced user input services in applications (pen and ink, speech etc)
Hkcmd.exe:hkcmd.exe is installed alongside Intel multimedia devices and allows configuration and diagnostic options for these devices. This program is a non-essential process, but should not be terminated unless suspected to be causing problems.
Explorer.exe:explorer.exe is the Windows Program Manager or Windows Explorer. It manages the Windows Graphical Shell including the Start menu, taskbar, desktop, and File Manager. By removing this process the graphical interface for Windows will disappear. This program is important for the stable and secure running of your computer and should not be terminated.
Note: explorer.exe is a process which is registered as a trojan. This Trojan allows attackers to access your computer from remote locations, stealing passwords, Internet banking and personal data. This process is a security risk and should be removed from your system.
These are some of the important system processes
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Saturday, November 1, 2008
The Open Sceince Project
The OpenScience project is dedicated to writing and releasing free and Open Source scientific software. We are a group of scientists, mathematicians and engineers who want to encourage a collaborative environment in which science can be pursued by anyone who is inspired to discover something new about the natural world.
Much of the work of science depends on having appropriate tools available to analyze experimental data and to interract with theoretical models. Powerful computers are now cheap enough so that significant processing power is within reach of many people. The missing piece of the puzzle is software that lets the scientist choose between models and make sense of his or her observations. That is where the OpenScience project can help.
They currently have 6 interrelated projects:
* Collecting links about and providing a home for Open Source scientific software projects.
* Advocacy for a distributed model of doing scientific research.
* OOPSE, an open implementation of a force-field based molecular dynamics program for use in chemical and biochemical simulations.
* Jmol, an Open Source Java/Swing based molecular dynamics viewer.
* JChemPaint, an Open Source Java/Swing based molecular structure editor.
* LinkWeaver, an Open Source collection of shell scripts, html, and PHP3 files for managing hierarchical trees of links.
OpenScience.org is also a place to park a blog for Dan Gezelter, the director of the project. He’s a chemistry professor at Notre Dame who specializes in theoretical and computational chemistry. He’s also an open source evangelist, the original author of Jmol, and the leader of the OOPSE development group.
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How to Reset your Ubuntu Password if forgotten
This tutorial would help you Reset your Ubuntu system's Password easily in a few minutes.This is pretty simple to do and requires no expertise whatsoever.Just follow the instructions below and you should be able to reset your ubuntu password.This can be used when you have forgotten your ubuntu password which gives you no access to the machine.So here's how you do it.
Reference:howtogeek
Step 1 : When your PC boots, You should see the Grub Menu . Hit the ESC key(escape) as soon as you see the Grub Menu as it would show for only 5-10 seconds
Step 2 : Once that is done Select the Recovery Mode option and then choose "Drop to root shell prompt" from this menu.
Step 3 : Now You would have the root shell prompt.
Step 4 : Enter the following command to reset your Password passwd username where username would be the username of the ubuntu machine of which the password you have forgotten.For example : - passwd hemanth where hemanth is my username
Step 5 : Then type sync and hit ENTER and then restart your pc
Step 6 : Now you should be able to access your ubuntu account without any problem using the new password you created in step 4
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Tuesday, October 28, 2008
Data Execution Prevention:-Troubles Caused
Recently whenever i tried to execute some of the programs i used to get the DEP error.Although the information given was satisfactory i decided to go a bit deep into it and check it out..I found an article that was very good for this problem.Here it goes
SYMPTOMS
When you run a program in Microsoft Windows XP Service Pack 2 (SP2) or in Windows XP Tablet PC Edition 2005, you may receive an error message that is similar to the following:
Data Execution Prevention – Microsoft Windows
To help protect your computer, Windows has closed this program.
Name: program name
Publisher: program publisher
Data Execution Prevention helps protect against damage from viruses or other threats. Some programs might not run correctly when it is turned on. For an updated version of this program, contact the publisher. What else should I do?
If you click Close Message, the program quits, and Windows Error Reporting gives you the option to send an error report.
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CAUSE
This behavior occurs because Microsoft Windows XP SP2 uses the Data Execution Prevention (DEP) feature to help prevent damage from viruses and from other security threats.
DEP works alone or with compatible microprocessors to mark some memory locations as "non-executable." If a program tries to run code from a protected location, DEP closes the program and notifies you, whether the code is malicious or not.
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RESOLUTION
To avoid this behavior, contact your program vendor to see if an update is available that enables the program to work correctly with DEP.
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WORKAROUND
If your computer is set to apply DEP to all programs and services, the DEP error message will have a Change Settings button. If an update to the program is not available, follow these steps to add an exception for the program from the DEP error message:
1. When you receive the error message that is mentioned in the "Symptoms" section, click Change Settings.
2. Click to select the check box next to the program, and then click Apply.
3. When you are prompted to restart your computer, click OK two times, and then restart your system.
You can also add an exception for the program by using System Properties in Control Panel. To do this, follow these steps:
1. Click Start, click Run, type sysdm.cpl, and then click OK.
2. Click the Advanced tab, click Performance, and then click Settings.
3. In Performance Options, click the Data Execution Prevention tab, and then click Add.
4. In the Open dialog box, locate and then click the program.
5. Click Open, click Apply, and then click OK. When you are prompted to restart your computer, click OK.
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STATUS
This behavior is by design.
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MORE INFORMATION
If your computer is configured to turn on DEP for essential Windows programs and services only, the Change Settings button will not be available from the DEP error message.
You can view the DEP configuration for your computer in System in Control Panel. To do this, follow these steps:
1. Click Start, click Run, type sysdm.cpl, and then click OK.
2. Click the Advanced tab, and then under Performance, click Settings.
3. In the Performance Options dialog box, click the Data Execution Prevention tab.
4. Note if Turn on DEP for essential Windows programs and services only or Turn on DEP for all programs and services except those I select: is selected.
When your computer is configured to turn on DEP for essential Windows programs and services only, you cannot add an exception for a program. This is the behavior that is by design in Windows XP SP2.
If your computer is configured to turn on DEP for essential Windows programs and services only, and the DEP error message continues to appear, a program may be installed that extends Windows functionality. This program may be installed so that it causes a DEP problem in an important Windows program or service.
If this behavior is recent and has not occurred before, you may be able to prevent the DEP error message by removing recently installed programs.
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REFERENCES
For additional information about the DEP feature in Windows XP Service Pack 2, click the following article number to view the article in the Microsoft Knowledge Base:
875352 (http://support.microsoft.com/kb/875352/) A detailed description of the Data Execution Prevention feature in Windows XP Service Pack 2
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