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Tested: How Many Times Can a DVD±RW Be Rewritten? Methodology and Results

goughlui.com

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Re: Tested: How Many Times Can a DVD±RW Be Rewritten? Methodology and Results

#32

I love this and I love seeing that it's from 2026 and someone still took the time to do all this testing- it must have been seriously involved because even at 6x it takes a while to fill up a DVD, and then to repeat that hundreds of times on several discs would be an eternity. I haven't used a DVD+-RW in several years, as wireless file transfer over networks and flash drives handle pretty much all of my needs now, bu…

From my personal experience, the article and the comments I read here they seriously undersold the reliability of rewriting. For any other RW medium (audio or video cassettes, even floppies) I remember ad campaigns by Sony, TDK, Philips, … on tv. But not for these.

Re: Tested: How Many Times Can a DVD±RW Be Rewritten? Methodology and Results

#33

I love this and I love seeing that it's from 2026 and someone still took the time to do all this testing- it must have been seriously involved because even at 6x it takes a while to fill up a DVD, and then to repeat that hundreds of times on several discs would be an eternity. I haven't used a DVD+-RW in several years, as wireless file transfer over networks and flash drives handle pretty much all of my needs now, bu…

I thought two-three times. Maybe a dozen. I always treated all kinds of writeable CD/DVDs as if they were one-write and done.

To be honest, it hurts every time I write to an SSD drive — which is all of the time these days.

Re: Tested: How Many Times Can a DVD±RW Be Rewritten? Methodology and Results

#34
post #5

DVD-RWs always seemed like complete magic to me. I had no idea how they worked, or why they worked. I made and wiped DVD-RWs as a teenager dozens of times, because my dad got annoyed that I kept using up all his DVD-R's, so I bought like three DVD-RWs and used them for all my experiments. I don't think I got anywhere near the limits for any of them, as I don't remember getting any faults from them, but they were alwa…

dvd-ram drives and media were always premium products, with the drives at least ~4x more expensive than the -r drives of the time, and the media was much worse than that.

When -r disks bought in bulk cost ~20c each, $10 disks are a hard sell.

Re: Tested: How Many Times Can a DVD±RW Be Rewritten? Methodology and Results

#35
post #5

DVD-RWs always seemed like complete magic to me. I had no idea how they worked, or why they worked. I made and wiped DVD-RWs as a teenager dozens of times, because my dad got annoyed that I kept using up all his DVD-R's, so I bought like three DVD-RWs and used them for all my experiments. I don't think I got anywhere near the limits for any of them, as I don't remember getting any faults from them, but they were alwa…

[flagged]

The DVD+RW actually used pencil and eraser technology instead. It was a surprisingly robust method.

Re: Tested: How Many Times Can a DVD±RW Be Rewritten? Methodology and Results

#36

I love this and I love seeing that it's from 2026 and someone still took the time to do all this testing- it must have been seriously involved because even at 6x it takes a while to fill up a DVD, and then to repeat that hundreds of times on several discs would be an eternity. I haven't used a DVD+-RW in several years, as wireless file transfer over networks and flash drives handle pretty much all of my needs now, bu…

From my personal experience, the article and the comments I read here they seriously undersold the reliability of rewriting. For any other RW medium (audio or video cassettes, even floppies) I remember ad campaigns by Sony, TDK, Philips, … on tv. But not for these.

I feel in general the industry was more conservative making these kind of estimates than it is today. I assume they also benefited from years of CD-RW field experience honing the tech.

Re: Tested: How Many Times Can a DVD±RW Be Rewritten? Methodology and Results

#38

DVD±RW is old stuff, I want proper phase-change persistent memory. Bring back Intel Optane and hook it up to a modern, high-performance PCIe bus.

The same site has an article on that: https://goughlui.com/2024/07/28/tech-flashback-intel-optane-... Retention issues are a bit worrying.

This is awesome, thanks.

My understanding is Optane is still unbeaten today when it comes to latency. Has anyone examined its use as a workstation OS volume compared to leading SSD's?

Re: Tested: How Many Times Can a DVD±RW Be Rewritten? Methodology and Results

#39
post #8

Earlier quoted context omitted.

If you have a Pro edition license most things Windows does are a registry key away. The entire policy branch of the registry is designed to have configuration pushed down from the network like when and how to update, but you can also set all of those keys manually. (Also, no hacking is necessary to set up a Windows Pro install with a local account, just tell it you're going to domain join it.)

One hint for the wary: Don't delay feature updates for the maximum allowed in the group policy editor. I couldn't figure out why I was getting forced reboots for updates despite other policies requiring it to ask permission. Turns out that if the update hits the group policy maximum, it forces an update immediately, other policies be damned. So set it to the max - 14 days if you want some time to apply updates at you…

If you don't want feature updates, go Windows 11 IoT Enterprise LTSC. It's a comparative breath of fresh air and what Windows should have been all along. No ads, no new unwanted bloat shoved down your throat, no mandatory TPM, and pretty much the longest security patch commitment of anything out of Microsoft. It works great as a daily driver.
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