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Ask Rick 049, 08/05/09 & Houston 128 16/05/09
Card Tricks
I have a Panasonic
hard disc DVD recorder/player and I have burned DVDs on my PC so that I can
show all my digital pix (jpeg files) on TV. This works fine, however what
I would like to be able to do would be to put the jpeg files on my USB
memory stick and use that instead as it is obviously quicker and more flexible
to transfer files from the PC to the stick rather than burn a DVD.
My problem is that
the DVD player has no USB input (it has SD card slot and of course a SCART
socket). Is there such a thing as a cable (or device) to connect my USB stick
to the player via either of these inputs? I have searched online so far without
success
Neil Bingham, by
email
Not as such but you could use a USB/SD Card reader. I
suggest one of the compact models that look like normal USB memory sticks.
These have a slot on the side, or at the end (covered by a removable cap) that
accepts a standard SD memory card. When a card is inserted into the reader and
plugged into the PC it is treated like a normal memory stick, so all you have
to do is copy your files to it. Remove the reader then pull out the SD card and
plug it into your player. Readers like this can be really cheap too, in fact my
local Poundland stocks them: I’ll leave you to figure out how much they cost…
Grabbing Stills from DVD
I can't print stills from DVDs on my Windows XP PC using the Print
Screen function. When I view the captured image with Office Picture Manager the
screen area is completely black. I have no problem printing images
generally. It's the Print Screen facility
that doesn't seem to copy stills from DVD. Am I missing necessary software? If
so, how can I get it free or cheaply?
Victor Adereth, by email
This is normal and the reason you can’t take a screengrab of a DVD
is because the video display is what’s known as an ‘overlay’. In other words
it’s a separate display window, created by your computer’s video adaptor,
rather than Windows. On some PC’s it is possible to override this feature by
turning off your computer’s graphics acceleration, which puts the display back
under the control of Windows. To do that open Display Properties (in XP
right-click desktop, select Properties > Settings; in Vista select Display
Settings), click the Advanced button then select the Troubleshooting tab. If
available move the Acceleration slider to ‘None’. If that facility isn’t
available you can use a media player with a screengrab utility, I suggest VLC,
it’s free and you’ll find a link to the download at: http://tinyurl.com/2m8jcr
Seeing Better Through Windows
I have a friend who is partially sighted and as a result has
increased the screen resolution slightly, which improves matters a lot.
However, because of the increased font size, when she opens a secondary window
or a dialog box, it does not always fit completely on to the screen (typically
the title bar is off the top or action buttons are off the bottom).
She has learned to use Alt + Space > Move to enable her to use
the keyboard to shift the box around, but this disables the mouse, so she
cannot then click on any buttons, since once she clicks, the box reverts to
showing the title bar at the top and consequently loosing the action buttons
off the bottom.
Cliff Darby, by email
Vista has a number of built-in ‘Accessibility’ features for those
with vision impairments and I suggest that your friend tries them all. Go to
Start > Control Panel > Ease of Access Centre > Make the Computer
easier to see. Try the High Contrast Colour Scheme first, which is turned on
and off by pressing Alt + Left Shift + Prt Scr. If that doesn’t work out
experiment with the settings under
‘Change the size of Text and Icons’. There’s also a Screen Magnifier
that can help if the visual impairment isn’t too severe. However, in the end
one of the mort effective solutions is to switch to a larger display,
especially if your friend is using a 17-inch display, the sort supplied with
most PCs as standard. Changing to a 19-inch or even a 21-inch display can make
a world of difference.
Shrink Wrap Music
I've been recording music from some of my old LPs using my PC and
I am then able to burn the tracks onto a CD. These 3-minute tracks take up
about 37Mb of memory in .wav format. What do I need to do to compress these
tracks down to around 4Mb, similar to mp3 tracks? I would like to attach
individual tracks to an email but 16Mb is the most I'm allowed.
David Wilkins, by email
Strictly speaking you cannot compress Wav files, at least not
easily; it is a ‘lossless’ format and very closely related to the CDA (CD
Audio) format used by CD. Wav files precisely describe a sound by sampling it
many thousands of times each second, producing a very large, fixed amount of
data. On the other hand mp3 is a ‘lossy’ format, and files can be compressed or
made very much smaller by discarding data that represents sounds we cannot
hear, or are masked by other louder sounds. It is possible to make wav files
smaller by reducing the number of samples or ‘bitrate’ but this has a much more
noticeable effect on quality, compared with mp3 compression and it may also
render the file unreadable on some CD players. To get back to your question, if
you want make a .wav file smaller or send it as an email attachment, convert it
to an mp3 file and the easiest way to do that is to open it then save or Export
it in an audio editing/recording program like Audacity or Free Audio Recorder (http://tinyurl.com/2m8jcr).
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© R. Maybury 2009 1404
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