OK, regular readers: stop right here. This blog post isn't meant for you. The only reason I'm putting this out there is because it took me two days to figure it all out for myself, and although certain forum posts found through Google helped me along the way I've not yet seen any comprehensive guide to recovering files from corrupt Norton 360 backup disks. It certainly would have sped things up So, if anyone else finds themselves in the same situation, this is for you!

Here's the background. A couple of days ago, a relative inadvertently wiped the data from her PC. Although she had a three-DVD set of a Norton 360 backup, they were refusing to restore anything and Norton's technical support were - apparently - less than helpful. (Judge for thyself.) I didn't want to poke around the PC, since I'm not a data recovery expert and didn't want to overwrite anything, but did bring home the DVDs to have a look if anything could be salvaged.

This is a sample of what was on the disks:



There didn't seem to be anything actually wrong with reading from the disks, but the backup consisted purely of extension-less alphanumeric files arranged in various folders. I tried running both Norton 360 itself and Norton's 'Portable Restore Utility', but they both reported that the backups were essentially empty. It seems a crucial database file was missing from the disks, and for a while I thought there was nothing more to be done, at least without Norton's decryption algorithm.

However, after searching about some more, it turns out that these backup files were simply the original files but without their file names or extensions! (So much for 'encryption' )

So, as promised, here's how to restore at least the file contents:

1. Copy all of the backup files into one folder on your hard drive.

2. Download the supremely excellent TrID, by Marco Pontello. Note: for Windows, and I'm kinda assuming you are a Windows user here, given the circumstances, you'll need to download both the Win32 zipped package and the 'TrIDDefs.TRD' package of file definitions from the bottom of the page.

3. Extract both of these zipped packages into the same folder housing your backup files.

4. Open a command line window at this location. Note: on Windows 7, the easiest way to do this is by holding down the shift key as you right-click on the folder. Then select 'Open command window here'.

5. Type 'trid * -ae' (no quotes) and press enter.

At this point, TrID will run through all of your backup files and attempt to restore their extensions. If you have a large number of files, this may take some time, but it should be obvious that it's working:



And that's it! Once TrID has finished, you should have your files back - albeit without any useful names or folder organisation. Still, a mammoth filing task is surely slightly better than losing it all forever

P.S. I really don't recommend you use Norton 360 as a backup solution...

P.P.S. A minor point, but yay once more for Windows 7! For a task like this, little things like grouping and moving files by certain criteria are just extra-easy.

P.P.P.S. If I do get any payment for this, I will definitely be giving some to Marco Pontello, promise.

Just back from Bill Thompson's talk on the '10 cultures problem': a restatement of CP Snow's famous divide between the arts and the sciences, but this time between those who understand computer code and those who don't. (That's '10' in binary or '2' in decimal; I understand this because Daryl taught me about binary numbers whilst sitting around the dinner table many years ago, all of which rather pays tribute my parents' ability to persuade clever people to talk to us.) Anyway - the point is that without an understanding of how systems work, people are powerless to make informed decisions about how those systems should be applied within society. And with computing very much at the heart of what we all do, this matters.

I don't disagree, but I think it's just one manifestation of a much wider and long-running phenomenon: the tension between specialisation and universality in a world where the former promises great power and the later may be the only real safeguard against its abuse. You can, after all, set up a similar 'two cultures' paradigm about many things - between those who understand the process of experimentation and those who don't, between those who can use rhetoric and those who can't, between those with mechanical engineering prowess (building, plumbing - the things I tend to call 'real skills' ) and those with none whatsoever. I understand that the challenge is not to turn everyone into an expert on everything but merely to be able to understand what the experts are doing, and how they are thinking, but experience doesn't seem too encouraging.

Nevertheless, life is not binary and we don't have to accept a straight choice between 'expert' and 'know nothing'. CP Snow bemoaned the fact that an ignorance of the Second Law of Thermodynamics would not prove embarrassing to members of the literary elite, and I assume that today many people still wouldn't have much of an idea. (Including me: I 'know' what entropy is in a very general sense, but I couldn't go into many details.) But, thinking about it, perhaps there are a fair few non-scientists who would have some inkling. And in the networked age it is phenomenally easy to learn just a little bit more. Perhaps the best we can hope for is the mass curiosity, will and means to research new areas of knowledge over a lifetime: it won't lead to everyone understanding code, but maybe just enough to discuss it at dinner parties.

It technically launched two weeks ago, but there's still more than enough time to tell you about... Reindeer Post! Yes, over the holiday I've been working on this joint business venture: my role, unsurprisingly, was to build the website. The idea is very simple - personalised letters from Father Christmas for children (or even ironic adults ). Simply head over to the site, fill out our order form and (for a low low price) the intended recipient will receive a customised letter from Santa addressed to them in the post. And let's face it, getting letters is pretty cool these days even when it's just a bank statement... how amazing to get one from the North Pole? (Or Lapland, he said hastily.)

A word about the website itself: yes, it's very simple and highly imperfect. I know this, honestly. But I am reminded of that erstwhile Microsoft saying - "shipping is a feature" - and particularly so for such a seasonally-dependent service. The important thing is that the site is up and running and works, which is does, so that we can all learn lessons for next year. So go on - if you know anyone who would just love a letter from Father Christmas, tell them about Reindeer Post. Ta

~


Part 2: On Bad Wives
Ladies! Please make sure you don't live like Jane Wallis, for she is "a great talker, and spent the time in which she ought to have been providing for her husband's comfort, in standing at the corner of the street gossiping with all the idle people who chanced to be passing. And then the money Dick earned went to pay for smart bonnets and gowns for her, for she was very fond of finery. Then when the bills came in, Dick complained and grumbled; but it was of no use. She answered him with such a storm of abusive words, and with such a burst of passion, as fairly drove him out of his home, and sent him to 'Red Lion.'".

Oh dear. I think we all know what happens next..."Well, one night it came to and end... We rushed to the front to see what was going on, and we saw there such a sight as I never saw before, and I trust I shall never see again. Poor Jane Wallis was lying on the ground apparently dead, her head bleeding dreadfully, and over her was standing Dick, with the poker in his hand, only half sobered by what he had done."

The Internet was down yesterday, and so I was forced to turn to more inventive methods of time-wasting. These are very rough and ready, but I'm not a graphics person by any stretch of the imagination, so allow it:

Note - title is for 'catchy title' purposes only, I don't claim this is actual hacking on any level

One of the nifty features of my new laptop is 'Dell MediaDirect' - essentially a button which quickly loads a hidden partition allowing you to listen to your music, see your pictures, watch videos and DVDs and display PowerPoints all without ever booting up Windows. It's nice to have - and though not as pretty as Windows Media Center - a fairly cool thing to have available.

MediaDirect runs on Windows XP Embedded, so I wondered if there was a quick and easy way to have a bit of a play about with it. Thankfully, there is!

1. Make a PowerPoint presentation containing a hyperlink to C:\Windows\explorer.exe

2. If using Office 2007, save this in the 97-2003 file format so that MediaDirect's 2003 viewer can open it

3. Boot into MediaDirect and click on the link - and voila!

4. To enable the Task Manager so that you can quickly repeat this process in future, find taskmgr.ex_ in the 'Windows \ System32' directory and rename to taskmgr.exe.



(Paint isn't included in that version of XP Embedded and loading Vista's version from the main partition didn't work, but a copy of XP's Paint did the screenshot job nicely.)

So - what practical purpose does this all serve? Probably very little. There is some space - about 265MB worth - for adding your own 'quick access' stuff. A fully functional (it appears) version of Windows Media Player 10 is included. A few DOS games - loaded from the Vista partition - also work, which is useful since they didn't in Vista. It could also be feasible to update the PowerPoint viewer and allow viewing 2007 file formats. It also occurred to me that if your main Windows installation was damaged beyond repair that this could be a good way of easily accessing your files from the hard drive, since USB devices are recognised by XP Embedded. But really, it was just nice to achieve - really by accident - at 2 in the morning