Dope Tech Episode 2

<<@ExplainingComputers says : As some people have noted below, in the word cloud "bz2" appears incorrectly as "b2z". But all is correct in the BZip 2 section at 7:11. And I have corrected the thumbnail. Also note that GZip compressed TAR files have the extensions tgz or tar.gz, not tar.tgz, as noted in the third bullet point around 7:53. My apologies. This video was checked, corrected and re-rendered many times . . . but at the moment, things like this are slipping through. :(>> <<@OpenGL4ever says : Another point to pay attention to is error detection. There are archive formats where a single bitflip is enough to make the archive impossible to unpack.>> <<@-kekmacska-48 says : 8:59 *unless you use paq8 or zpaq8. That can even utilize modern processors 100℅>> <<@-kekmacska-48 says : zz, rz, xz, pva adt are my favorites. they can compress up to almost 50% efficiency which is crazy>> <<@neoaldus says : One key factor that you missed in your video presentation is the ability to recover the content of a damaged or corrupted archive. The main reason I prefer WinRar is the possibility to add recovery records to an archive (3% by default, but configurable by the user). I only found one more piece of software capable of doing this, but it was old, kinda buggy and unmaintained. Until 7-Zip (your main recommendation) will add something similar, I will not even consider it. What's the point of making an archive that could no longer be read later because of bit rot, transfer errors, faulty CD/HDD sectors and so on?>> <<@marksc111 says : 10:17 WinZip is also available for macOS, although hardly anyone seems too use it.>> <<@Busto says : Hahaha!!! EC is funnier than I thought!😂 Nobody pays for WinZip & WinRar!!!🤣🤣🤣>> <<@as.september1996 says : How to extract a ".car" file?>> <<@peterc4082 says : ARJ format was left out!>> <<@simrikinnos says : Dear king,,, you could have billions of subscribers but only hindered by the short term joke monkeys. 1000% respect...>> <<@TurboLoveTrain says : ...Great video. I had to learn compression in analog systems. It's also pretty amazing how similar multiplexing often looks to compression. I still send people uncompressed Bitmaps just to see if anyone notices... they usually don't.>> <<@DopeXen says : 6:43>> <<@genericelaf1007 says : Really love the style of this man.!!>> <<@dannyboots says : Zip, 7z, and RAR I use all the time>> <<@ankitkumarsingh6185 says : WinUHA should have been mentioned>> <<@desiredditor says : 7zip is the best app>> <<@k4piii says : Sorry about this ,but your voice is perfect to sleep>> <<@lucasmoratoaraujo8433 says : I love this guy! And this hairstyle is not easiest one to pull off, but does it nonetheless. Thanks for sharing you knowledge with the world! ❤>> << says : Great explanation, thanks!>> <<@sebastjansslavitis3898 says : mostly useless thing nowadays, the biggest files are pictures and videos and they don't compress. it works great on text files, but I don't know how much text you need to worry about space... maybe if you own a library :D password protection and archiving is only thing that matters>> <<@JfromUK_ says : Great video! I knew some of this but it filled in a lot, and was so complete, well paced and expertly put together. Big 👍🏻 from me, as a newbie to your channel 😊>> <<@americanswan says : I'm conflicted. I love RAR. It offers great features. But I genuinely don't have much need for compressing anything.>> <<@IamTheHolypumpkin says : Sometimes file compression can achieve amazing results. With xz. I was able to compress a diskimage from 20 GiB to about 2 GiB.>> <<@nico3534 says : this one of the craziest intro tracks iv ever heard>> <<@elblanco5 says : I install the free 7-zip on windows almost as soon as the updates for the OS finish. It's great, supports a ton of formats, it's free and source is available. There's also version for Linux and MacOS.>> <<@xeridea says : Compression is still used commonly on the internet. Generally web pages compress the HTML, CSS, JS, etc files on the fly to the browser (using fast compression option), as it still generally saves time loading, and is useful for your phone on mobile data, and those still on DSL. It was a huge deal in the 80s though, connecting to BBSs over slow dialup, compression was a godsend.>> <<@Jeroen74 says : No ARJ 😢>> <<@SegNode says : I almost clicked off the video at the beginning since the intro was a little slow and boring, but I'm glad I stayed around because the rest of the video held my attention well and was very informative 😊. Thank you for making it.>> <<@ShadowKestrel says : one curious strength of gzip is that both compression and decompression support streams, whereas most formats require entire files at a time. This is especially useful for sending lots of data over networks>> <<@jsrodman says : Comparing xz vs 7zip is just comparing your settings since they use the same format.>> <<@jsrodman says : its a mistake to suggest reliance on password protected zip files. The method used in pkzip is defeatable in fractions of a second. The method used in winzip is better, but as winzip (into zip really) has been unmaintained for 20 years, it too is defeatable in a short timescale, likely hours even with a good password on a single machine.>> <<@jamesmnguyen says : My favorite thing about data compression is that the resulting data is generally more random looking. Or to put it another way, pure random data cannot be compressed.>> <<@lidarman2 says : We did a clever trick at work for 8 bit lidar data compression. We take a chunk of data which in this case is a set of successive time series values, load them in a 2D array and save as a PNG file. This reduces the data storage size losslessly but also allows one to look at the thumbnails and visualize the data when browsing the data set.>> <<@feynstein1004 says : 4:55 You say that like it's a bad thing 😁>> <<@kenaitchison7712 says : This video is painful to listen to to my American ears.>> <<@El-Ge says : For so many years I am using 7z for it is free>> <<@pierrekilgoretrout3143 says : thank you, interesting summary! You confirmed my choice of 7zip for compactness, and zip for openness (my partners can open without additional sw) If everybody is using windows I can also create a self-extractive 7z archive password protected, however not everybody will trust an exe!>> <<@gosnooky says : Compression is more prevalent than most people realize. Nearly every request through the web for text-based files (HTML, CSS, JSON, JavaScript, Plain text) is gzip (or Brotli) compressed on the server and decompressed automatically by the browser. It can save tons of money when using cloud-based services where bandwidth usage is metered, or on people's metered data connections on mobile. The system I work on needs to send tens of megabytes of text-like files every second from one server to many mirrored (load-balanced) smaller cloud nodes, so everything is compressed. Our AWS bill for this particular service would be 15x higher without compression. It's also good for the planet - smaller files, less network attenuation, less power usage.>> <<@sirkerzenhalter8191 says : Win.RAR and its never ending trial And we love it>> <<@belgiumball2308 says : did bro seriously download winzip?>> <<@meowthx1985 says : Well Chris it appears 7-Zip 24.00 beta just been released. Also I was provided WinZip for my Windows 95 when I bought the Amiga Emulator in 1998 from HMV. WinZip was good but after being took over by Corel and having to pay for the registered version is off putting and it doesn't compress as much as .rar nor .7z. The thing is I use 7-zip with its ability to compress my Counter-Strike maps as .bz2 for my FastDL server at ultra compression mode. But the question is will we get better compression to reduce our files at the very minimum? Besides .gzip and .zip have very poor compression results, which is why I use .7z for my PC and .tar.xz for my Linux for archiving.>> <<@doragonmeido says : where is peazip?>> <<@TheReptileDragons says : I dont understand why there are commercial compression or archiving methods or programs. Why would someone create a file that requires you to buy software to decompress it when there are several alternatives that are free and have faster compression/decompression and/or higher compression ratio?>> <<@flyingbluelion says : lossless compression sometimes produces bigger files. Lossy compression will always make a smaller file. Choose wisely. As always, for best results in technology, investigate WHY!>> <<@philosoaper says : WinRAR was the first piece of PC software I ever bought that wasn't a game. I don't remember exactly when but I think I was still using one of Windows 95 betas (Chicago) at the time. ... my back hurts just thinking about it>> <<@christoffer4862 says : There was another great experimental compression format called NanoZip but it disappeared.>> <<@fimapearl9132 says : smart jewish guys :D none of this would exists without israel>> <<@isheamongus811 says : The Linux kernel contains code for zip?>> <<@Yanni_X says : i always wondered and will still continue to why people create .rar-files, which explicitly need a proprietary & commercial software to compress (& for a long time decompress) while zip was mostly "free". At least since windows introduced .zip-support i never understood winrar-people... I don't see advantages here except if you purposefully want to annoy people that don't have winrar installed.>> <<@mewnz says : I remember ARJ being very popular in the early 90s on BBS hosts.>>