How to Rip And Edit DVD Movie on Mac OS X?

This step-by-step guide will show you how to use Aimersoft DVD Ripper for Mac to rip general DVD (copy-protected included) on Mac OS X (Leopard Supported). It will include two parts:

1. How to rip DVD to MP4, MOV, AVI, MPEG, 3GP, FLV, M4V, MP3, AAC, APE on Mac OS X

2. How to edit, crop, trim, join DVD clips on Mac OS X

What you need is Aimersoft DVD Converter Suite for Mac or Aimersoft DVD Ripper for Mac; you can free download Aimersoft DVD Ripper for Mac from here.

Aimersoft DVD Ripper for Mac key features: Supported Video formats: DVD, IFO, VOB, MP4, MPEG, AVI, M4V, MOV, 3GP, MPG, FLV, etc. Support Audio formats: MP3, M4A, AAC, WAV, OGG, APE, etc. Support Devices: iPod, iPhone, Apple TV, Zune, PSP, PS3, Cell Phone, Creative Zen, iRiver, PMP, Archos, Sony, MP4 player and MP3 player

Part1. How to rip DVD to MP4, MOV, AVI, MPEG, 3GP, FLV, M4V on Mac OS X?

Step1. Download and install Aimersoft DVD Ripper for Mac. Insert your DVD disc into DVD drive, then run the software, click “Load DVD” button to import the DVD file. You can also load DVD folders from your hard drive by clicking “Load IFO”, DVD folders files name appear like “Video_TS” Tips: This software supports converting by selecting chapters or customizes conversion time. If you just want certain part of the DVD movie, you can check the chapters you want or trim the movie.

Step2. This software can convert DVD to various video formats such as MP4, MPEG, AVI, M4V, MOV, 3GP, MPG, FLV, etc. Click the “Profile” drop down list to select a format you want. Tips: If you don’t know much about video formats, you can select a format according to the name of your portable player. For example, you can select “iPod Touch MPEG-4 (*.mp4)” when you want to rip DVD movie for iPod Touch, and the default setting works great. This software also includes the DVD Audio Ripper function, so you can extract audio from DVD movie to MP3 or AAC for web using or other portable player.

If you want to customize the output video quality, you can click the “Settings” button next to the format field to open the Settings window and set video resolution, frame rate, bit rate, encoder, etc. See the figure below:

Step3. Select Subtitle and Audio Regular DVD movies usually have several subtitles such as English, French, German, etc. You can select one you prefer. You can also delete the subtitle by selecting “No Subtitle”. Selecting Audio is the same. After the above steps, click “Start” to start conversion. When the conversion finished, you can click “Open” to locate the file in your hard drive.

Part2. How to edit (trim, crop, join) DVD movie on Mac OS X

If you want to capture certain part of the DVD movie, you can click “Trim” to customize the conversion time, there will be a timeline below the preview window, you can drag the little triangle icon to set the conversion start time and end time.

If you want to cut the black edges of the DVD movie, you can click the “Crop” button, and then you will see a pop up windows (See the figure below). There is a frame in dashed line around the movie video; you can drag it to cut the black edges. More over, you can specify an area by setting the crop values. You can select an output aspect ratio and the available options are: Keep Original, full screen, 16:9 and 4:3.

If you want to join several DVD chapters into one file, on the main interface, there is a check box “Merge into one file”, select it, then you will only get one output file instead of several files by chapters.

You can click the “Effect” button and customize the brightness, saturation, contrast, volume, etc (See the figure below). You can even apply special effects such as “Emboss”, “Negative”, “Old film” and “Gray” by selecting an effect from drop-down list.

Gaming Cases: Selecting The Right One For Your Gaming Computer

If you’re going to build your own custom gaming computer, one of the most important aspects of building that computer is choosing an appropriate case. Gaming cases come in a wide variety of shapes, sizes, and styles for a variety of uses. You will need to determine what components you need your gaming case to include not only to make sure it looks nice but also to make sure your computer functions properly. The most critical thing you should consider when selecting a computer case is to ensure that it is big enough for what you need it for. Factor in all the components that you can put into the computer. These should include the motherboard, media drives, any associated wiring, and room for the cooling system that you want to use. There is no worse feeling than purchasing a case and starting to build your computer when you realize that your computer is too small for what you wanted. To select the right size, the first thing you should look at is the size of the motherboard and to see if the computer case is compatible with that size. Then you will want to ensure that all of the components that you choose for a computer also fit in the case. Do not forget to include the wiring and if you want mechanisms in the case that hide the wiring. Many people do not factor the wiring into their computer case, but it is very critical because too many wires can impair the cooling system and make your computer look sloppy. Cooling is a critical issue you should consider with gaming cases. There are two types of cooling that you can choose from, air and liquid. Air cooling uses fans to push cool air into the computer and hot air out. Having too many components or wires impairs the air flow and can result in overheating. Do your research to see what kind of fans the case has and supports and read the reviews of the different kinds of fans to include how much air they pushed through the computer and how quiet they are. If you choose to use liquid cooling, on the other hand, then you will want to make sure that you have enough space within the computer case for all of the liquid cooling components. More importantly, however, it is imperative that you find a case that has good placement for the reservoir and tubes. Liquid cooling requires that you change the liquid every so often and it is beneficial to find a case that has good placement for the reservoir to make it much easier to change the liquid without spilling and possibly damaging your computer. One other thing you may be interested in with a gaming computer is customizing the case. This really will make your gaming computer stand out, but you will need to ensure that the case has adequate to make these upgrades including adding lights, using different types of fans, and putting other devices on the computer that make your computer really stand out. One of the last things that you should consider when looking for a brand-new gaming case is the value. Gaming cases range in price from below $100 and can exceed several hundred dollars. You do not always need to get the most expensive case to get the best quality. Do your research and find what case offers the best site for what you want. You will be surprised how much money you could potentially save. As you do your research, you will ultimately determine what kind of case suits your needs and that you want. Keep in mind some of tips that were listed above and you should not be disappointed in your purchase. Take your time and do not rush because there are many gaming cases to choose from.

A Glossary of Networking Terms – Part 2

The second instalment in this trilogy of articles explaining some of the more common terms found in networking jargon introduces two terms which may already be familiar to many computer users as technologies they make use but without necessarily a full awareness of their definitions: Ethernet and VPNs.


The term Ethernet is most frequently used to describe a type of network cable, common in our homes and workplaces, but actually applies to the protocol which defines the cable and its associated technologies (e.g., computer ports) that can be used to connect computer devices to each other within a network. As a result the term can even be used in some contexts to refer to the networks (predominantly LANs – Local Area Networks) themselves that they form.

The Ethernet protocol is standardised by the Institute of Electrical and Electronics Engineers Standards Association (IEEE) and is the most common such network connection used in the IT industry. The original Ethernet standard delivered a data transfer rate of 10 megabits per second and utilised copper coaxial cables (i.e., inner cable which carries signal is insulated by secondary sheet material) to do so. With the advent of successive standards such as Fast Ethernet (100 Mbit/s) the transfer rates have risen significantly up to the highest at 100 Gigabits a second. The Ethernet cables used t0o achieve these speeds have developed to include fibre optic and twisted pair (usually copper) cables alongside the original coaxial forms, with the most common and familiar cables in the home and workplace being twisted pair.


The abbreviation VPN is short for the term Virtual Private Network. This concept covers a broad array of technologies, including EVPN (Ethernet VPN), but essentially describes a secure connection between computers or LANs made across a public network such as the internet. VPNs allow communications between separate networks to be kept private and secure with no-one intercepting them and/or viewing them in transit. Whereas secure WANs may have previously relied (and in some cases still do rely) on dedicated physically distinct leased lines to ensure that the information being transferred is done so outside of the public domain, VPNs create what is called a tunnel to provide the same effect. VPN tunnels are a virtualised equivalent ‘through’ which encrypted data packets are transferred – essentially representing the idea that the data packets are cloaked to appear as though they are normal public network data transmissions without providing any visibility of the data they contain. The packets containing the core data are encrypted and encapsulated within outer packets which are further encrypted and which simply display information on which network gateway they are intended. The encrypted packets of data can only be unencrypted to view the contents when they reach the predesignated destination computer.

VPNs are a vital tool in business to allow workers to work securely off-site (as if they were in the office), to connect disparate branch offices, reduce physical business travel and to allow networks to incorporate and utilise varying types of computing device (e.g., tablet vs desktop). In turn, these opportunities all allow businesses to increase efficiency – reducing costs and boosting productivity – as well as improving flexibility and employee morale.