This is one of the most commonly asked questions on many video and audio forums. Many want to know how to combine video and audio footage, or combine multiple video files together.

The great thing is that the process of doing this is not that hard. You just have to have the right software and a little bit of time. I am going to go over four of the most popular software titles for combining multiple media files below.

Mediajoin

Are you looking for a solution that allows you to combine your video and audio files together quickly and easily? Mediajoin is a great piece of software that allows you to combine MP3, OGG, WAV, and WMA audio files with AVI, MPEG and WMV video files. This software is free, but unavailable for download from the developers website. If you look around on other download sites, though, you should be able to find it.

Combimovie

Are you just looking to combine a few video media files for a one-time project? Are you looking for something free? If so, then Combimovie is for you. Combimovie allows you to combine multiple mpg/mpeg videos into one big file. This is freeware, so you will not have to pay any money to do this.

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Popularity: 100% [?]

Not every movie file on the Internet has the same file type. Windows Media files are different than QuickTime movies, which are not the same as Real media files. Each format has specific uses and run through specific programs. Here are some of the most common movie file types you will find on the Internet.

Windows Media File

Windows Media video files (or .wmv) are one of the most popular movie file types on the Internet. They are played in the standard Windows Media Player that comes with all Windows computers.

QuickTime Movie

The QuickTime movie format (or .mov) is Apples equivalent to Windows Media Video files. It is very popular because this proprietary video format can be played on both Mac and Windows computers. .mov files are played by apples QuickTime player.

Real Media file

Real media files (or .rm) are files that can be completely downloaded before playing, or can be streamed directly from the Internet. These files can contain audio data, video data, or both. Real media files are
played on the Realnetwork's Real Player. …click here to read more →

Popularity: 96% [?]

Many times, when you are running a virus checker on a windows machine, a file called csrss.exe will pop up and the end prompt and show that it is infected. You don't really know what this file does, or if you need it.
It looks like a Trojan or a virus. You say to yourself "I don't need this file. All it does is cause problems. I am going to delete it!" STOP!

The csrss.exe file is stored in the c:\windows\system32 folder. It is a critical system process that will cause very big problems if removed. Don't even try removing it from the task manger. It will still cause operational problems in your operating system. Don't touch it.

Now, this is a critical system file, but it is easily infected by spy ware and trojans. That's why it is always showing up in your virus checker. It is best to let your antivirus program deal with this and not worry about it.
There are rare cases when this file will become corrupted. One of the ways you can find out if this file is corrupted is by simply opening your task manager. If it is using over 95% of your CPU or another abnormally high amount, there is a good chance this is the problem.

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Popularity: 94% [?]

Most of the files that you delete are send to the Recycling bin. This helps you to recover files that you delete by mistake. On the other hand there are different files that are not send to the Recycling bin but are instantly deleted, so that you can not recover them from the Recycle bin.

If you delete a program through the “Add or remove programs” option in the Control panel or just uninstall a program, then all the files that will be deleted won't be send to the Recycling bin.

When you delete files in the MS-DOS prompt then they are instantly deleted and not copied to the recycling bin because the recycling bin is not a MS-DOS program.

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Popularity: 77% [?]

So, you have deleted a file that you would still need? It is not such a big problem as it looks like because there are several ways to recover your deleted file. Before we tell you how, let us tell you why you can do this.

The deleting process that is used by Windows and most other operating systems is not really a deleting process. The file is not deleted from the disk, but the computer is just told, that the file is not there any more. It is just like if you would delete an entry from your DVD database. You would not be able to find it any more but the DVD would still be just where it was. Until you would change it for something else. And the same goes for the computer. If the file was not overwritten, then you can still recover it.

But before you do that, you should go and check your Recycle Bin. Most of the files, that you delete are just copied into the Recycle Bin. Until you do not empty your Recycle Bin, you can always recover the file. Just open the Recycle Bin (you will find it on the desktop or in your Windows explorer), scroll down to the file that you would like to recover and right click on it. Now click “recover” and the file will appear in the directory where it was located before you have deleted it.

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Popularity: 74% [?]

If you see this file on your computer, you should not be worried. This is one of the files that Windows needs to run. It is one of the system files that you should have on your computer, and you should not delete it.

Normally it is located in the c:\windows\system32 or c:\winnt\system32 directory and can also be found in the c:\i386 directory. It has a description as a „NT Layer DLL“ and it contains NT kernel functions.

This file is not a security threat to your computer. Anyway a virus or a trojan can infect different files, so you should use an anti virus program to scan your computer. Even if the anti virus finds a virus within this file, you should not delete it but you should disinfect it, because your Windows system will need it. If you have an anti virus software installed on your computer, that regulary checks all the programs that you install and all the internet sites that you visit, you should not get such problems at all. Regular anti virus check should be scheduled.

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Popularity: 77% [?]

Database files are used to store different information about what files or information are you using on your computer. Most of them are hidden files, so you do not even see them when you browse through your directories with Windows Explorer, because they are hidden and not showed by Windows by default. You can change these settings in Windows Explorer under Tools – Folder options – View – Show hidden files and folders. Now you can see all the hidden files and with that all the database files. The most common database files that are going to be described in this article are the .db

The .db files, are also called Paradox database file or Progress database file. These files are used to store information, that the system is going to use later and it could acquire it later, but it is faster if the information is stored in it. The most common .db file is thumbs.db, a file where the windows store information about the pictures that are in each folder. As said, the information can be gathered at any time, and that means that you can delete this file if you wish. But it will be later created again, when you access the pictures that you have in a folder.

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Popularity: 87% [?]

The PIF extension shows to a file, that means a “program information file”. A system file, that windows uses since it was created. It was meant to to store information on how to run programs. They are still used in the Windows that we use now, but the file is one of those witch you do not really need to know. If you try to run it, you will not get anything from it, but the file helps other programs to run.

If you receive a PIF file in an email it is probably a virus. You should check who has send you the email, and if you are not sure who is it from just delete it. Even if you know who the sender of the email is, but you do not know what to do with the file, then delete it also. It is very probable that the person who the email is from, does not know that he or she has a virus that is sending the emails by itself. If you are really sure, that you know why this file is in your email and you know what to do with it then it is safe for you to open the file. Your anti virus program should protect you even if the file is infected. But be careful anyway.

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Popularity: 75% [?]

Private information, private photos, or just a present for your loved one in a word files, all these are files, that you need to protect on your computer, so that other people can not access them, or even see them.

The first problem here is that the operating system Windows XP does not have encryption software, when you install it. The best way to do the job is to get third party software that you can use to hide and encrypt your files and folders. There are many different programs that you can use, such as WinCry, a free program, or a commercial version, called Folder Guard. These programs will give you the biggest security that you can expect from a program on Windows XP.

You need to know, that there is no 100% security, and if someone really wants to get to the file, he will. But, for the normal user, you can use any of these programs.

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Popularity: 81% [?]

Have you ever been looking around on your Windows XP computer and have found a mysterious little file called Thumbs.db? Chances are, you have. And there is an even larger chance that you do not know what this file
does, if you need it or not, and how to remove it.

The purpose of this file is actually quite simple. Every time you have some type of media file in a folder, Windows automatically creates this file. This file is created so you can view thumbnails of pictures and movies without opening the whole file. You know how every time you open your pictures folder, you see a little preview image of each picture? Thumbs.db creates those!

Do you need these files? This is something you need to decide yourself. The Thumbs.db file is not essential for your systems operation, but it really is useful. If you do a lot of media editing, or just have a lot of personal pictures, it would be a good idea to keep these files. If you don't have a lot of media files on your computer, or if you use very descriptive titles for your files so you know exactly what the file looks like without seeing it, then you probably don't need it. This is a personal decision you have to make.

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Popularity: 82% [?]