* Ease of Operation: DRmare Works Better than Requiem

First of all, we need to install both programs on the same machine in order to have a thorough comparison between the two head to head. Although both tools are available for Mac and Windows, considering the fact that Requiem won't work easily on a Mac due to the system identity protection, we'll install DRmare and Requiem on a Windows PC for testing.

As for DRmare M4V Converter, it's easy to install via the straightforward setup package. Once installed, you'll discover the user interface is well designed with clear layout and neat buttons as below.

The DRM removal process could be done within only a few clicks. Make sure all iTunes videos you want to convert are currently downloaded and authorized to play on your computer. When you launch DRmare, it will load iTunes automatically, or warn you to close iTunes if it's already open. Then simply add your DRM-protected iTunes movies or TV shows, either by dragging and dropping the files onto the DRmare window, or by navigating a list from within the app itself. Choose a output format as MP4 (lossless) or M4V (lossless) from the Format panel. Currently DRmare M4V Converter for Windows only supports two lossless formats, while the Mac edition supports other popular formats and preset devices as well, including MOV, AVI, FLV, MKV, DVD, iPhone, Samsung Galaxy, HTC, Xbox, etc. By selecting the Lossless MP4 or M4V, it will preserve the 100% lossless quality of the iTunes movies, including AC3 5.1 audio tracks, CC subtitles, and much more.

At last, you just need to click the "Convert" button to let it work. Once the DRM removal process finished, you'll get new copies of your iTunes movie purchases or rentals sitting on your computer hard drive, free of any restrictions and able to be played via any app or on any device.

When it comes to Requiem, the DRM removal process would be more complicated and time consuming as you have to install the old iTunes 10.7 version and Java Runtime environment in order to make it run as expected. Besides, if you want to keep subtitles and other metadata, you're going to need to run mkvtoolnix and CCExtractor before launching Requiem. Once the preparations are done, the conversion progress would be easier to handle.

Now run Requiem, it will then scan your iTunes library for any protected files, then remove the DRM encryption. When the process is done, Requiem will delete the original iTunes movies and replace them with the DRM-free versions playable with whatever media players and devices.

* Video Quality: Requiem is Completely Lossless

There is one small thing to note regarding the output video and audio quality when using both tools. For DRmare, the DRM removing is lossless for video and 5.1 audio track, which means you won't lose any quality in the converted unprotected iTunes movies. However, when it comes to stereo AAC track, or the iTunes video with a stereo track only, DRmare will encode the AAC track somehow. Therefore, there will be a small loss in audio quality. In this case, you'll find that the file produced by DRmare is not exactly the same size as the original file, usually slightly smaller. But it's likely that most users won't be able to hear the difference.

On the contrary, Requiem's video and audio conversion for iTunes are completely lossless. That's to say, there won't be any loss in video and audio quality, no matter which audio track the original video contains. It has something to do with the method Requiem uses to remove DRM from iTunes movies. Generally speaking, Requiem accesses a user's unique iTunes authorization keys and actually removed the DRM from the original file itself, similar to the process of decrypting an encrypted file, which result in a DRM-free file that was identical in quality to the original.

So if you really care about audio quality, make sure you're using the 5.1 Dolby track, but not the 2-channel AAC track with DRmare. Otherwise you'd better turn to the Requiem method.

* Conversion Speed: Hang in the Balance

The conversion time is actually not a big matter as the conversion environment is different for each tool. Since Requiem is running with an ancient iTunes version, theoretically the DRM algorithm is supposed to be much easier to be cracked. Thus we would expect the time it costs to remove off the DRM from iTunes movies by Requiem should be shorter, and it does.

Specifically speaking, take a 4 GB iTunes source movie for example. The time Requiem takes to produce the DRM-free copy is around 5 minutes, while DRmare M4V Converter takes 8 minutes to do the same task.

Given that DRmare M4V Converter is fully compatible with the latest version of iTunes, it makes sense that it converts slightly slower than Requiem as the DRM enforcement of new iTunes is much complicated and difficult to decrypt than older iTunes. But it's still worth mentioning that DRmare is currently the fastest iTunes video converter among similar software that supports latest iTunes v.12.6, approximately at 30X faster speedy processing.