Fighting the DVD Bitrot

There has been a time when DVDs where the main medium for backups and for acquiring audiovisual content. These days might long be over but I still have quite a collection that I would like to keep. Unfortunately their lifetime is not endless and most of my devices no longer have a DVD drive. And those that I still have are not very reliable anymore and have started refusing to read more and more of those DVDs lately. So it was time to think about how to preserve the content and make it more easily usable with current devices.

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My Tablet Setup for a Privacy and Security

If I could get it my way, I’d probably put LineageOS or another proprietary Google and hardware manufacturer free Android version on my tablet. While this is possible with some tablets, I would however loose the pen and handwriting input which is an absolute must to use the tablet not only for media consumption but also for work. So I made the best out of the situation and here’s a short overview of my setup:

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The ‘Network Alive’ Monitor

For many many years I’ve used ping in a shell window which I placed in the lower right corner of the screen to monitor my Internet connectivity. So when something network related stopped working I would immediately look there to see if the Internet was still reachable. Crude, but quite effective. But being far from perfect I’ve now spent a bit of time to write a nice GUI program for the purpose that also expands the functionality a bit.

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Evolving Tablet Use – What’s the Difference Between a 320 vs. a 650 Euro Tablet?

Image: handwritten notes on the tabletI’ve been using a tablet on and off for many years now. However, it’s been mostly off as I was mainly using this device type for media consumption, i.e. web browsing, videos, reading ebooks, etc. rather than creating content. Recently, however, I’ve taken another look at tablets with a pen and how they can be used in combination with handwriting notes and for annotating PDFs. While entry level tablets can be had for less than 200 euros these days, it looks like those that can handle pens well for handwriting start at around 300 euros. To see what kind of difference price makes in 2020 for the use cases I had in mind, I bought a €650 tablet and another one for €320. Both came with the pen included. I don’t want to mention makes and models here because I don’t think that’s relevant for the comparison. And indeed, the difference is quite noticeable, not only in the details.

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Working on that Terabyte per Month

Image: Amount of Down/Uplink data in October 2020Out of interest, I’ve been monitoring my monthly data usage over my DSL line at home for many years now. Up until last year, there was only a small increase year by year and in 2019 I consistently reached about 120 GB per month. This has changed quite significantly this year due to the ‘pandemic home office’ style of work I have adopted. I’m not quite there yet, but the 1 TB per month of data use at home is not that far away anymore. But even if I arrived at this point I’d only use a tiny fraction of the amount of data that could be transferred over the line per month.

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You Better Have An Older Notebook If You Need A 4 TB SSD

One and a half years ago in March 2019, prices for 2 TB SSDs had finally come down enough so I could afford upgrading a couple of notebooks. Since then, despite constant efforts to move unused data to long term offline storage, the amount data I store on my work notebooks keeps rising. So I am keeping a close eye on the price for 4 TB SSD drives just for the fun of it. As it turns out, it’s better at the moment to actually have an older notebook for that amount of SSD storage!

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Getting My Volume Keys Back

Screenshot: Ubuntu 20.04 function key overlay

One pain point I have with more recent notebooks is that manufacturers have decided to no longer have dedicated function keys for important things such as changing the sound volume or muting the microphone. Instead, these features are now part of the standard ‘F’ function keys which I guess the typical user does not use anyway. But I am not the ‘standard user’ so when I was really fed up with this state recently, I starting looking for a fix.

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Multiprocessing for My Nautilus Extension

Back in summer I spent some time working on a Nautilus file manager plugin to automate image rotation, shrinking, removing exif information and PDF’ing the resulting images into a single file. I have been using it quite a lot ever since and especially when treating a high number of files, say 1000 images at a time, the process can take 15-20 minutes easily. At the same time, I have noticed that my 4 thread CPU is not fully utilized as all processing is done sequentially. So I had a look how to run several things simultaneously to speed things up.

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Swisscom Goes the Other Way – GSM on the Way Out

In a previous post I wrote a bit about UMTS being switched-off in Germany by two network operators in mid-2021, less than a year from now. While other network operators have similar plans I found it quite interesting that Swisscom has decided to do the opposite. Instead of switching-off UMTS soon, they have decided to phase out GSM by the end of 2020.

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