Updated 13 Oct 2008

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Introduction

DVD hard disk recorders can store hundreds of hours of programmes. We've put 9 models to the test.

Prices for DVD hard-disk recorders continue to fall as the storage capacity increases. There are some issues to be aware of though - we explain what to consider when you're buying.

We also look at which brands are most reliable, and how the My Sky option compares.

Models we tested

Checklist

If you're considering buying a DVD recorder, here's what you need to think about:

Type of recorder

DVD recorders

These record onto blank DVDs, combining the functions of a DVD player and a VCR. A high-quality setting gives you about one hour's storage on a single-layer DVD. A medium-quality setting gives about 4 hours, and a low-quality setting 6 to 10 hours (depending on the model). If you like a programme enough to keep it permanently, you would probably want to use a high-quality recording.

Hard-disk recorders

These record onto a hard-disk inside the machine. As well as replacing your old VCR you can record daily or weekly shows without having to put in a tape. You can also watch time-slipped programmes - that is, start to view a programme before it's finished recording (also called "Chase Play").

These machines can store a lot of TV. At their maximum-capacity (lowest quality) setting, the models we tested can store hundreds of hours of programmes. On the high-quality setting, it could be up to 100 hours. But you'll also need to transfer programmes on to a DVD if you want to keep them - and the number of storage hours on a DVD is a lot less than what's on the hard disk.

The operating menus on some hard disk models can be frustratingly difficult to use. You'll also pay a high premium for storage. A 160GB hard disk model, for example, costs a lot more than a similar spec DVD recorder. We think prices can fall a lot more on hard disk models.

You also need to be aware of reliability issues. Hard disks have been known to fail - they are, after all, very similar to the hard drives in personal computers. To help your machine last, treat it carefully. Most manuals for the hard-disk recorders have cautions and disclaimers about the hard disk. They recommend backing up recordings to DVDs, not moving (or unplugging) the unit while it's working, waiting at least two minutes after switching off before moving it, not subjecting it to vibration or sudden temperature changes, and not placing it near significant heat sources.

Bear in mind that prices for hard-disk recorders are falling. So, if the hard disk fails after a few years, the machine may be not worth repairing. You need to factor that possibility into your purchase decision.

Features

DVD recorders have a huge range of features and options. You need to focus on the key issues:

• Can you easily record what you choose, when it's convenient?
• Will you be driven mad by incompatible discs, a frustrating remote, or poor operating menus?

Disk formats

Like the early VCRs, there are different recording formats on DVD disks.

Single use types, like DVD-R or DVD+R can be read by almost any DVD player. But, if you want to "chase-play" on a non-hard drive model, you'll have to use re-writable disks. DVD-RAM models are most likely to offer this feature. Some new style DVD-R disks in "VR" format allow chase play.

If you have a camcorder that records to DVD or miniDV discs, look for a recorder that can play the same formats.

Recording quality

On the high quality settings you'll get very good quality pictures and sound. If you want to fit more onto disks or the hard drive, quality reduces. It's still acceptable on the medium settings, but on the lowest setting the picture quality suffers substantially.

Remote controls

We are rarely satisfied with remote controls. And DVD recorders have so many features and options, that a complicated remote is usually needed. Look for a remote with fewer buttons and the recorder designed to be operated by on-screen menus.

If you can, check that the menu system is logical and easy to use.

Regional coding

If you're likely to want to play DVDs from other regions, make sure the player can be made multi-zone. Ask the salesperson, and don't buy unless they make it multi-zone.