Buyers
Guides > Portable DVD players
II
Introduction
A portable DVD player, typically
about the size of a hardback book, with
a bright, colourful, TFT (“Thin Film
Transistor”) LCD (“Liquid Crystal
Display”) screen, can be a godsend
when it comes to entertaining yourself,
or your family, while you’re on the
move. Portable DVD players are compact and
lightweight enough to be comfortably tucked
away in your hand luggage, but nevertheless
allow you to play your favourite films,
and music, from a variety of recording media,
in a variety of formats, and perhaps even
television programmes.
Chosen carefully, a portable
DVD player can also prove to be highly versatile,
providing connections to your television
and other home entertainment systems, as
a temporary, or permanent, replacement for
a standard DVD player. Advancements in the
technology involved, coupled with steadily
falling prices, mean that a portable DVD
player is now within the compass of many
domestic consumers, financially, and has
become a real, viable proposition.
Key Features
The size of the display screen,
and its resolution, are, perhaps, the key
features when choosing a portable DVD player.
A variety of screen sizes is available,
ranging from 4 inches, or so (measured diagonally,
as is customary), up to a massive 17 inches,
in the largest models. Do bear in mind,
however, that a very large screen –
that will obviously, itself, increase the
overall dimensions of a player – also
requires larger, or extra, batteries, further
increasing the size and weight. Larger screens
are also more “power hungry”,
so, if you cannot do without one, be prepared
for a shorter battery life, compared to
smaller models. Large screen models are
also, unsurprisingly, more expensive. On
the other hand, if you opt for a very small
model, you may find that squinting at a
tiny screen quickly becomes tiresome. Remember,
too, that because of the diagonal measurement,
a small increase in the quoted screen size
will produce a relatively large increase
in the size of the viewing area.
Your selection process, therefore,
needs to involve a compromise, or “trade-off”,
between the dimensions of the screen, the
size and weight of the player, and its price
tag. An “average” portable DVD
player, therefore, may have a screen size
in the mid-range – say, 7 inches –
which allows for comfortable viewing, but,
at the same time, allows the player to remain
easily portable, and affordable. The Nextbase
DVM235 model, for example, has a pop-up,
3.5 inch TFT screen, while the Optronix
PD-070 model offer a high resolution, 7
inch LCD screen.
The resolution of the screen
is usually expressed as the number of rows
and columns of picture elements, or “pixels”,
which it is capable of displaying, and is
a measure of the level of definition, or
detail (and, therefore, overall picture
quality) that you can expect. You may, for
example, come across figures such as “480
x 234”, “640 x 480”, and
many others – generally speaking,
the higher the resolution the better. True,
DVD-quality video, however, can only be
reproduced on devices with a resolution
of 720 x 480 (or 720 x 576, depending on
the DVD format) pixels – lower resolutions
will produce a certain amount of “fuzziness”
in the image displayed. Also, don’t
confuse the resolution of the screen with
the resolution of the DVD player, itself
– the player may be capable of playing
higher resolutions than the screen can handle,
and, while this may be desirable if you
wish to connect it to, for example, a high
resolution television set, it is the screen
resolution that governs its stand-alone
performance. The Xoro HSD 7100 7 inch multiregion
portable DVD player, for example, offers
a resolution of 480 x 234 pixels.
Large, bright screens, high
in resolution and contrast, and deep in
colour are all very well, but are of little
practical use if the batteries of a portable
DVD player only last for an hour, or so
– so look for a player with an adequate
battery life, typically between two and
three hours. If you’re planning to
use your player away from mains power for
long periods, it’s probably worth
investing in a set (or possibly two sets)
of Li-Ion (“Lithium Ion”), or
Li-Po (“Lithium Polymer”), rechargeable
batteries. These are admittedly more expensive,
but 40% more efficient, safer, and more
environmentally friendly than the older
battery technologies.
Media formats matter too.
The majority of portable DVD players will
allow you to play files in the most common
video (MPEG1, MPEG2, MPEG4, DivX, etc.)
and audio (MP3, WMA, etc.) formats, and
some have the facility for displaying still
photographs in JPEG format, but it is worth
checking the specification from the manufacturer
to make sure that your favourite formats
are actually supported. Check, too, that
your chosen player supports CD-R, CD-RW,
DVD-R and DVD-RW, if you’re in the
habit of burning disks of these types at
home. The Shinco SDP1735 multiregion portable
DVD player, for example, supports all of
these formats and also includes an integral
FM tuner.
Finally, if you’re looking
for a versatile DVD player that will serve
you well “on the road”, but
also feature as part of your home entertainment
system, you’ll need to consider its
connectivity options. Some models, for example,
include an S-video output, and digital,
or optical, output for audio, and can be
connected to your television receiver, or
digital surround sound system. Again, the
manufacturer’s specification should
give you all the information you need.
Conclusion
There is a bewildering choice
of portable DVD players on the market, many
of which are very similar in design, functionality
and price – what distinguishes on
from another is largely subjective, although
usually based on the size, and resolution,
the screen (and hence the quality of video
playback), audio quality, battery life,
and, of course, price. It’s important,
therefore, to list, either mentally, or
preferably, in written form, all of the
absolutely essential features that you require
from a player, before you start shopping.
This will help you to focus on obtaining
value for money, and, hopefully, prevent
you from being distracted by unnecessary
quirks and gimmicks.
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