Camcorders hard disk and flash memory
For Digital Future | October 7, 2008
Camcorders hard disk and flash memory store video files as if they were computers or MP3 players. When it comes to video quality, its quality is second only to professional cameras and are much higher than the DVD-based cameras due to the inability to store HD video on a DVD. Such cameras are being put in place in the domestic market, and even, we can say that the cameras with hard drive are what will occupy the bulk of the market for recording SD (standard definition) while there and HD (high definition).
Hard drive camcorders come with varying amounts of memory, currently the most common are 60-gigabyte hard drive, but others go up to 160 gigabytes of memory. The huge potential of the storage capacity of these cameras is one of the reasons for its popularity. For example, a video camera with 60 gigabytes of hard drive can store in general, about 7 hours of video, with the superior quality recording (1440 x 1080i at 19Mbps), 5 am in FULL HD (1920 x 1080i at 26'6Mbps ) Or 14 hours DVD quality. The Mini DV camcorder format, which uses tapes or DVDs, which uses 8-cm DVD discs, can store only 30-60 minutes at each one of them and with a much lower resolution image, away from the HD. Another advantage of the hard disk camcorders is that people should not worry about rewinding to review a recording and it is impossible to accidentally record over it when you press "Record", as the camcorder automatically saves video clips in the space on your hard disk.
The flash memory camcorders now offer different options for capacity, the most common is 16GB, which gives them about 3 hours of high definition or about 8 to 20 hours of standard recording. The advantage of flash memory is that it has no moving parts, so it is considered more durable than hard disk. More camcorders are also small and light, with a time of access to information also higher thanks to the hard disk to flash memory. Usually these types of cameras use removable memory and facilitate their management and more.
Both the hard drive and flash memory have a large storage capacity compared with chambers of a lifetime. This means that there is no need to carry tapes, discs, or a laptop to go by downloading the recordings. Camcorders hard disk represents an increase of the versatility and portability, but they tend to lose a little in accessibility because they have a price considerably higher than the flash memory. But it is also true that pay about two times more per gigabyte flash memory with that with the hard disk.
Many cameras also have hard drive slots for memory cards and get a few extra gigabytes of space for photos and video if necessary. Memory cards, a type of removable flash memory, are particularly useful when you want to add extra memory to your camcorder. The most common types of memory cards in camcorders are microSD or Memory Stick cards.
A camcorder with a slot for memory cards is a good option to share video clips over the Internet. These cameras make it easy to transfer video files or image to memory slots on the computer or printer and its transfer is faster than USB. You could say that the flash format is recommended for non-professional journalism, but not to record a trip with the family during the holidays because we need to record many hours.
The HDMI outputs allow connecting the camera to the television to play videos directly on the highest quality while the high-speed USB enables us to transfer the files on your computer or media devices.
We have to take into account that recordings in HD (high definition) can not be recorded directly to DVD and thus lose image quality. That is why the Blu-ray recorders are not the only solution to accumulate large amounts of space on the hard drive of your computer without losing the original quality of the video.
In this sense it is remarkable the introduction of AVCHD recording format, introduced in 2006 that allows you to record HD video in mini-DVD and DVD. This format appeared to compete with the HDV format but has some problems for editing on your PC. The most widespread is the HDV format, which allows a resolution of 1920 × 1080 interlaced, but the recording of this format is actually in 1440 × 1080.
The recording in MPEG-2 format should not be seen, there are cameras that have it but get a low quality and with better results, we have the AVCHD format.
On the other hand, we have the AVC/H.264 MPEG-4 format currently used by several manufacturers like Samsung and Sanyo. All models record in 720p format rare in the world of camcorders.
To determine the preferences of resolutions (720p or 1080i) I recommend the article "The resolution of the video sources."
Now beginning to be a good time to buy this type of electronic product to begin to have reasonable prices and to be increasingly brand available. Adquirir una videocámara sin HD no es nada recomendado ya que de aquí unos años nos lamentaremos de la calidad de los vídeos, todavía más a medida que aumenta más el tamaño de las pantallas de televisión. In fact the level of camcorders will not change substantially until that support 1080p recording, which is available only at a high cost, but will go down soon. Purchase a camcorder without HD is not recommended because of anything here a few years We regret the quality of the videos, even as it increases over the size of television screens.
) y un modelo de tarjeta SD . Here you can see an ad for a Panasonic hybrid model (hard drive more SD flash card) and a standard SD card.
After this introduction to the HD camcorder, is yet to explain more details about the most important parameters that we must take into account when a purchase such as zoom capabilities. Even in future articles will enter the comparative different brands of camcorders.
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