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The Pantera webstore - Airsoft guns and other hobby items
Also information about digital audio and video standards and storage format standards
Mail: aquila_grande@yahoo.no
Webmaster: Knut Holt
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Click here for spare parts, upgrades and comodities for cars and other vehicles
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To main page of hobby products, including RC cars, RC airplanes, rc boats, rc drones, science kits, electronics building sets and more
Skin care and anti-aging products
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Airsoft guns, paintball marker guns and other hobby items
Welcome to this online store for
hobby articles and especially hobby weapons. There are however links to sources of all types of hobby products further down, including RC models, gaming, multimedia and hobby science. Buying hobby equipment
online, you can get them for a better prize than from your local stores. Often
you can also find items or product variants you do not find locally.
Further down there is some information about multimedia standards.
By
clicking on the banners below, you will enter a specialized online store
for each cathegory. There you can learn more about or order each product exhibited on this page, and many other products of the same cathegory.
Good sources of airsoft and painball weapons
HobbyTron's stock of airsoft
guns and weapons
- HobbyTron is a general hobby store with a huge collection of airsoft
guns.
Trend Times Toys - a fine
inventory of airsoft tanks
- This is a general hobby store with all kind of rc models. It has a
fine inventory of airsoft tanks and many models of airsoft guns.
Two general stores with a great inventory of hobby products, including airsoft and paintball guns
- You can also find good offers on all type of technical products, apparel, health items, automotive itemsm erotic products and much more in these3 stores
Some product examples - gas driven airsoft guns
Spring driven driven airsoft guns
Electric AEG airsoft guns
Paintball guns
More good sources of hobby items
Here are presented som links to all types of hobby profuvts: Radio controlled helicopters, fantacy VTOL
airplanes, fast-winged airplanes, race boats, race cars, trucks, submarines and
robots. Some of the models are replicas of famous vehicles from the professional
life. Others are fantacy creations. Still others are copies of futuristic
vehicles from the world of popular moovies. You also find a great collection of
airsoft guns, and items like microscopes, telescopes, electronic sets, chemistry
sets, magic sets and magic tricks. In Hobbytron you can find a very
comprehensive collection of electronic components.
HobbyTron - a comprehensive store for hobby gear - including airplanes - You can also find car and boat models. The store is very strong in electronic kits and components and in airsoft guns.
Trend times toys - a comprehensive hobby store - This store is strong in all types of hobby products, but especially rc models
Store with good offers on tecnological products
- You will find hobby products of all kind, but also any type of technology for homes and workplaces. Allways some good offers on something you might need or whish.
General hobby product survey - rc models, hobby science, electronics, magics, cameras and optics and more
RC helicopters, propeller planes and jet planes
Music instruments, music records and gaming equipment
Hobby and consumer electronics - electronic kits, computing, cellphones
INFORMATION RESOURCES
Here is a survey of video formats. To find other information resources, please go to: this page
Digital audio and video standards (multimedia standards)
Storage hardware standards explained
Here is an explanation of some storage standrds used for multmedia files.
DVD - Short for digital versatile disc or digital video disc: This is a type of optical disk technology similar to the CD-ROM. A DVD holds a
minimum of 4.7GB of data, enough for a full-length movie. DVDs are commonly used
as a medium for digital representation of movies and other multimedia
presentations that combine sound with graphics.
The DVD specification supports disks with capacities of from 4.7GB to 17GB and
access rates of 600 KBps to 1.3 MBps. One of the best features of DVD drives is
that they are backward-compatible with CD-ROMs, meaning they can play old
CD-ROMs, CD-I disks, and video CDs, as well as new DVD-ROMs. Newer DVD players
can also read CD-R disks.
DVD uses MPEG-2 to compress video data.
DVD-R - Short for DVD+Recordable: This is a
recordable DVD format similar to CD-R. A DVD+R can only record data once and
then the data becomes permanent on the disc. The disc cannot be recorded onto a
second time. DVD+R and DVD+RW formats are supported by Philips, Sony,
Hewlett-Packard, Dell, Ricoh, Yamaha and others.
DVD-RW - Short for DVD-ReWritable, and re-recordable: DVD format similar to CD-RW or DVD+RW. The data on a DVD-RW disc can be erased
and recorded over numerous times without damaging the medium. DVD-R, DVD-RW and
DVD-RAM are supported by Panasonic, Toshiba, Apple Computer, Hitachi, NEC,
Pioneer, Samsung and Sharp.
DVD+RW - Short for DVD+ReWritable, a re-recordable: DVD format similar to CD-RW. The data on a DVD+RW disc can be erased and
recorded over numerous times without damaging the medium. DVD+RW and DVD+R
formats are supported by Philips, Sony, Hewlett-Packard, Dell, Ricoh, Yamaha and
others.
DVD-RAM: A DVD format wherein DVD-RAM discs
can be recorded and erased repeatedly but are only compatible with devices
manufactured by the companies that support the DVD-RAM format. DVD-RAM discs are
typically housed in cartridges. DVD-R, DVD-RW and DVD-RAM are supported by
Panasonic, Toshiba, Apple Computer, Hitachi, NEC, Pioneer, Samsung and Sharp.
These formats are also supported by the DVD Forum
Storage and
transmission formats explained
Here is an explanation of formats used to store video, audio or combined video/audio files
(multimedia files) on the PC, for streaming transmission of such files from a
central server, or for storing multimedia files on CDs or DVDs.
AVI - Audio Video Interleave: This is the file
format for Microsoft's Video for Windows standard. It is an proprietary
and Microsoft Windows spesific audio video standard designed by Microsoft for
storing video and audio information. Files in this format have an .AVI
extension. These files are limited to 320 x 240 resolution, and 30 frames per
second, neither of which is adequate for full screen, full motion video.
However, Video for Windows does not require any special hardware, making it the
lowest common denominator for multimedia applications. Many multimedia producers
use this format because it allows them to sell their products to the largest
base of users. Acceptable aplication support. A competing software - only in video format is QuickTime.
Videos stored in the AVI format have the extension .avi.
Characteristics: Bad quality to size ratio and subjective quality
impression
ASF- WMA/WMV: This is
Microsoft's Advanced Streaming format. A file in this format can contain Video,
Audio, Slide Shows and synchronized events. WMA (Windows Media Audio) contains
audio. WMV (Windows Media file with Audio/Video) is the same as the ASF except
it can be downloaded instead of streamed from a server far away.
DivX is a trademark of DivXNetworks: DivX is a digital video compression format based on the MPEG-4 technology. DivX
files can be downloaded over high-speed lines in a relatively short time without
sacrificing the quality of the digital video.
IVF (Intel Video Technology): This
format was originally the
Indeo codec developed by Intel. Later Ligos ( www.ligos.com ) has taken over the
development of the Intel codecs.
(Quick Time Movie File Extension): This is a video and animation
system developed by Apple Computer. QuickTime is built into the Macintosh
operating system and is used by most Mac applications that include video or
animation. PCs can also run files in QuickTime format, but they require a
special QuickTime driver. QuickTime supports most encoding formats, including
Cinepak, JPEG and MPEG. Apple's QuickTime has superior audio/video quality, it
is compatible with Internet Explorer and Netscape browsers and supports various
media formats.
The MPEG Format: The MPEG (Moving
Pictures Expert Group) format is the most popular format on the Internet. MPEG refers to the
Motion Picture Experts Group, an organization that sets international standards
for digital formats for audio and video. It incorporates both
audio and video encoding at a range of data rates. MPEG audio and video are the
standard formats used on Video CDs and DVDs.
It is cross-platform, and supported by all the most popular web browsers.
Videos stored in the MPEG format have the extension .mpg or .mpeg.
MP3 is short for MPEG Audio Layer 3: These are digital audio files that have been shrunken down while still maintaining their original sound quality. The file shrinking technology itself
was developed by the Fraunhofer Institute in Germany. Before there were MP3s, digital audio files took
hours to download. But on a 56K modem, most MP3s can download in just a few
minutes. MP3s are widely recognized as the most popular format for storing and
listening to music on the World Wide Web. There are three types of MPEG audio
encoding, layer I, layer II and layer III in increasing order of sound quality
and encoding time.
Layer I is the compression used in Digital Compact
Cassettes and Layer II in the compression format. Layer III.
has recently become very popular on the Internet due to its combination of high
quality and high compression ratio. It can be downloaded from many World Wide
sites and can be played using software available for most operating systems.
Characteristics: Acceptable quality to size ratio,
good subjective quality impression. Very good application support. Videos stored in the MPEG format have the
extension .mpg or .mpeg.
RealAudio: This is a proprietary encoding format
created by 'Progressive Networks'. It was the first
compression format to support live audio over the Internet and thus gained
considerable support, but it requires proprietary server software in order to
provide the real-time playback facility. It also supports repositioning during
real-time playback. The system is implemented as a client/server architecture.
The RealAudio server incorporates an encoder which compresses sound into
RealAudio files. The client side is a web browser plug-in or add-on (a recent
version of 'Internet Explorer' apparently has built-in support for RealAudio)
which allows the stream of data sent from the server to be uncompressed and
output using the normal sound facilities of the computer, such as a sound card. Characteristics:
Good quality to size ratio, good subjective quality impression. Bad application
support.
Real Video: This is a
format, but also a total streaming technology developed by RealNetworks for transmitting live video over
the Internet. RealVideo uses a variety of data compression techniques and works
with both normal IP connections as well as IP Multicast connections. RealVideo
8 offers enriched video quality and smoother playback over all types of
connections, from regular dial-up to broadband Internet connections. Picture
controls let you lighten up dark scenes and adjust flesh tones. Great for Web
cams or reality shows. Sharpen up fuzzy video. No matter what speed Internet
connection you have, RealPlayer 8 offers the highest-quality audio and video
experience available online.
Videos stored in the RealVideo format have the extension .rm or .ram.
700">RealPlayer: This system has very good audio/video quality. It is
compatible with Internet Explorer and Netscape browsers. It supports various
media formats. However, it provides only three preset video viewing window
sizes. RealPlayer is the only streaming media player that plays both
RealAudio and RealVideo, the leading formats for Internet audio and video,
giving you access to more than 85% of the streaming media programming on the
Web.
Shockwave (Flash) Format: The Shockwave format was developed by Macromedia.The Shockwave format requires
an extra component to play. This component comes preinstalled with the latest
versions of Netscape and Internet Explorer. Videos stored in the Shockwave
format have the extension .swf.
QuickTime Format:
The QuickTime format is developed by Apple.QuickTime is a common format on the
Internet, but QuickTime movies cannot be played on a Windows computer without an
extra (free) component installed.Videos stored in the QuickTime format have the
extension .mov.
VIV(Vivo Video): this is an old format and pretty bad
quality, but one of the first to be designed and used for Internet streaming and
thus it is still in use in a few areas. However, it is not very compatible with
current browser standards, mainly because development on the format ceased back
in 1997.