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Last Updated: Friday, 17 September, 2004, 14:30 GMT 15:30 UK
Click Tips
Rob Freeman
By Rob Freeman
Click tip-ster

Every day the virtual postman delivers hundreds of e-mails to our inbox. Rob Freeman gives some top tech tips in answer to some of your most pressing queries.

One of the reasons why portable music players like Apple's iPod are so popular is the vast number of songs you can fit on them.

They manage this because they are built around a large hard disk. But what if your MP3 player uses flash memory?

Prish Thakur wrote from India to ask:

I have bought a MP3 flash drive player but the memory is only 128MB. Is there any way to increase the memory so it may store more than just 28 songs?

I have checked, and I am afraid your MP3 player cannot be upgraded.

The only way to fit more songs on it is to encode them at a lower bit rate - but that means sacrificing some quality in the music.

It is difficult sometimes when you are thinking of buying a new bit of kit to predict how useful you might find it.

In my experience, after a while, what was a generous amount of on-board storage becomes ridiculously small.

So I always try to buy technology that has expandable memory.

While there are many cheap MP3 players available now, buying something a little more expensive with a slot for more memory means that it will last longer.

Memory cards come in all shapes and sizes: SD cards, SmartMedia (formerly SSFDC cards) or MultiMediaCards for example.

The advantage is that as you fill up your MP3 player's on-board memory card, you can put in one of those, which can hold up to 2Gb, and fit on many more songs.

If you then change your MP3 player, you can take the card with you and plug it in immediately.

Ali Murtaza Azim wrote from Karachi in Pakistan:

I have a Compaq Laptop and I want to re-format it. The problem is that I don't have the driver software, which was already installed. Is there any way I can save the driver files for my hardware and reinstall them after formatting?

I feel your pain - the answer is pretty much no. If you are asking me: Can you do it?, then yes, but should you do it - well, no.

It will take far too long and be far too difficult to track down all those files. If you just miss one of them out, the system won't set itself up at all.

In fact one of the producers here at Click Online lost the set-up disk for a 64-bit motherboard he is trying to set up, and has been having a nightmare trying to get it running.

The best thing - I think - is to go to Compaq's support website.

Now since you bought that laptop, Compaq has been bought by Hewlett Packard - a link to the site is on the right-hand side of this page.

Tell it where you are in the world, and then type in your laptop model number to search for drivers and software and there will be a whole bunch of updates you should download.

Suhail from the United Arab Emirates asked:

What is the difference between an inkjet printer and deskjet printer?

Presumably you saw our feature a few weeks ago about re-filling inkjet printer cartridges?

The cartridge delivers ink to a print head further inside the printer.

Inkjet printers get their name from the printing process which literally squirts ink onto the paper to form characters.

Deskjets are still inkjets, it is just one manufacturer's brand name for them. Another that you might see is bubblejet.

If you have any questions or queries, please visit our "Contact us" page to get in touch.

Click Online is broadcast on BBC News 24: Saturday at 0745, 2030, Sunday at 0430, 0645 and 1630, and on Monday at 0030. It is also shown on BBC Two: Saturday at 0745 and BBC One: Sunday at 0645. Also BBC World.

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