Kabombon

Unfortunately there's no way of knowing beforehand if the drive you're working on has or not a potentiometer unless you find information which specifies it on the internet or you open it up. It's worth a try @Tobim6 😁 It's handy to know this kind of stuff if you work on old CD or DVD drives.

Yes, the laser can wear out from multiple reasons. There's a way to increase it's power by slightly rotating a screw inside the CD drive which controls how many mW the laser gets. Nintendo GameCube consoles had this little trick to fix the console from being unable to read games anymore. You can also clean the laser lens with alcohol. Look on YouTube for tutorials on this, it should solve your problem. Though if you aren't confident on dissasembling the whole machine and putting it back together correctly, I suggest you to not try this @Tobim6

I have a system similar to yours @Tobim6 from SONY which I refurbished (cleaned the dust, changed the thermal paste, and the CD tray couldn't open so after I dissasembled it entirely I saw the rubber, which is used exactly like on the electric generators in car engines, being hard like a piece of plastic, so after replacement the tray had no issues). Fairly old hardware and it's a combo of CD Player and Music Casette Player, 125-150W stereo system (2.0). I doubt systems like ours would play CD-RW, especially considering they have a degree of reflection at 15–25% compared to CD-R discs of 40–70%. According to Wikipedia on CD-RW stucture information: While for CD-R structure information: TLDR: You need a stronger CD Player to read CD-RW because of it's low reflectivity.

Makes no sense for them to migrate to 33.3GB single layer BD-R discs at this point. We're at the beginning of the end for the Blu-Ray era. Soon enough we'll have a big jump in the technological advancement of readers/writers and we'll be provided with denser storage media which might be or not similar to the current technology of the Blu-Ray since it's technology didn't reach it's limits yet and can be pushed to multiple Petabytes/layer theoretically according to it's inventor. He succesfully made a CD-ROM of 120mm size and 1.2mm thickness which could hold 1.000.000GB of theoretical data and named it "Hyper CD-ROM". Sony then used the optical system technology involved and adapted it on the "Blu-Ray" system to fit comercial purposes. They can simply repeat the process, but with today's technological advancement taken in account 😶

BD-R XL (triple layered) discs are said to store "100GB" on cover (which means 100 Gigabytes), according to ImgBurn they hold 100,103,356,416 Bytes (not bits, to be kept in mind). Since those discs hold 3 layers, it would result to exactly 33,367,785,472 Bytes / layer which means 33.367785472 Gigabytes (the amount left after those 33.3GB matter a lot). This proves that they actually store as much as they say @dbminter. The confusion comes when you want to burn them. Always keep in mind that your file system will take up from whatever storage size is on the cover upon formating the media. For example one BD-R XL (triple layered) disc can only hold around 90.2GB of "real" data. What I talked about above is merely "theoretical" data. Very weird though considering BD-R (single layered) discs, which hold "25GB" on cover, (means 25 Gigabytes) can store only 25,025,314,816 bytes. That would make it a 25.025GB disc, or around 23.2GB after file system formating. One would expect single layer discs to contain a "full" layer of 33.367785472GB like other Blu-Ray discs types do, but the lithography level went lower along with the technological advancement of Blu-Ray writers/readers available to consumers so this why we don't have 33.3GB BD-R (single layer) discs. 😅 According to this information @Tobim6, the media you're seeing is of 34,359,738,368 Bytes which would mean 34.359738368 Gigabytes of theoretical storage and around 23.3GB of storage after file system formating. Also, calculating the numbers of Bytes/Sector, it would be 2048 Bytes/Sector for that media like on any Blu-Ray disc known. The key difference would be the Channel Bit Lenght that will DEFINITELY be even smaller than normal on today's usual Blu-Ray discs. BD-R (single layer) discs along with the BD-R DL (dual layer) discs have a Channel Bit Lenght of 74.50 nm (Nanometers), and BD-R XL (triple layer) discs have a Channel Bit Lenght of 55.87 nm (Nanometers). As you can see, the lithography level of the disc goes lower and lower the more storage one layer can hold. This would mean that your disc has a layer with an even smaller level of lithography than 55.87 nm, making this layer different from what a Blu-Ray is known to be. The main reason for your reader to not being able to properly make use of the storage media should be the Channel Bit Lenght. The firmware simply didn't include the feature to read with that precision (hardware-wise, you CAN read data with higher precision than 55.87 nm, but this value was chosen by engineers because it's the most error-free). Now, the math involved to calculate what's your Channel Bit Lenght there is a bit hard, I could do it though if needed (still I won't guarantee that it's a very precise result).

Yeah, I agree with what dbminter said. If you have a Blu-Ray Player, you should try and play the content from both sides of the disc and see what happens @Tobim6 Since if it's a DVD with a HD-DVD or Blu-Ray side, it should run it's content on a Blu-Ray Player (probably), that would at least confirm that the driver you're using to read the disc with isn't correctly equipped with the features needed to do what you want (which is to make a backup of the disc I guess, considering how scratched it is) 😅

UPDATE: ImgBurn Graph Data Files (3 more discs added to the folders linked above) DVDInfoPro Graph Snapshots (3 more discs added to the folders linked above) ImgBurn.log (69 Discs) QPxTool scans for Error Checking will be provided below at a later time.

Hi! I've opened a new Topic on a storage media I recently got my hands on. This one is an entirely another beast, triple layered with even smaller channel bit lenght (you'll see the values in the DISC INFO folder I'll share below) compared to the previsiouly discussed MediaRange BD-R SL (CMCMAG-BA5-000). The story of this is that I needed a resilient storage media for a movie but considering the size of it I needed to find something of 100GB or even 128GB capacity(like the BD-R Sony released in Japan a few years ago). Of course I didn't find the 128GB BD-R variant in local stores (which has 4 layers not 3 like this one) so I went and made a list of BD-R XL 100GB variants from multiple stores. Best offer on price/disc was obiviously on spindle packages, which I didn't want to buy because I needed only one, but I remembered this disc also comes in crystal cases so I got just that variant even though the disc was a tiny bit more expensive, 10.64$ with shipping. Like I did for the MediaRange BD-R SL (CMCMAG-BA5-000) in my previsious Topic, I compiled in folders the burning process, logs, photos and snapshots of various burn quality research programs (I plan to add soon Error Checking scans from QPxTool on this disc and all the discs from MediaRange BD-R SL which I've burned until now). You have below the Google Drive links of my research's results, so if anyone sees the information I provide here as useful and actually tries to work with these discs more than I did, tell me how it went in the thread. ImgBurn Graph Data Files (1 Disc) DVDInfoPro Graph Snapshots (1 Disc) DISC INFO Package Photos ImgBurn.log (1 Disc) Here is the data of the driver I've used to burn these discs with. (maybe relevant to those who burn the same discs but with another writer and have, or not, issues with the discs afterwards) ASUS BW-16D1X-U NOTE 1: Before burning this disc I've flashed the driver with another firmware from ASUS: DE_ASUS_BW-16D1HT_3.10_MK (MK comes from MakeMKV, their community changed the firmware a bit so we can flash it and to have all regions along with the writing/reading speed unlocked). NOTE 2: I will provide the QPxTool scans for Error Checking below in this Topic quite a while later, since it's very tedious to do, but I hope they help. NOTE 3: The ImgBurn logs will be added not only here but also to my previsious Topic for MediaRange BD-R SL (CMCMAG-BA5-000). NOTE 4: Any ideas of how I could research the discs further would be an awesome help 😥 THANKS FOR READING!

I see... From what I can figure out, the 3 batches you tested might have been manufactured in different dates so they must have aged by at least an year, the batch which worked probably was newer too. And it might also be that, before you got them, they have been kept in improper conditions in the warehouse by the retailer. While all this is simply a theory, it's a fact that not all discs are made the same. Best we can do is to see what we get from our order, burn the stuff to the discs, watch them over from time to time. If issues appear, we could research what we think that happened to the disc, how long did it take since it was burned (and how long was it since delivery). Conclusion is that we are lacking proper experimental data, of like... 10 discs of each variant from all manufacturers, where they burn the same content at the same time and are tested in different storage environments to see how they degrade, how long does it take, if can data be salvaged and so on. I will keep using these discs and provide data from time to time.

This is old news, because many already did many variants of a "Petabit Optical Disk" all over the work, the oldest variant being this one: Hyper CD-ROM According to Wikipedia, the technology used to make this disc was used by Sony to make the system named "Blu-Ray". This has a theoretical limit of 100EB (Exabytes) but until litography technology reaches that level, let's say the "Petabyte Disk" is attainable right now in labs pretty easily, and should see the light out of the box in consumer houses in the next 20-30 years. (yes, that late because there's little interes, and because what dbminter said is valid too) NOTE for dbminter: Even if the disc is WAY bigger than the total storage the consumer would have in his house, he can still burn to such a disc little by little using it exactly like a hardrive, although the files will permanently stay there and take up storage, unless he would use a ReWritable variant of the disc.

Personally I had no issue burning on the BD-R SL discs from MediaRange which is (CMCMAG-BA5-000) and I've burned 66 discs until now from 3 different spindles so according to their known low build quality and drive burning issues, I should have had at least one discs to fail while burning. None so far. All there is to do now is verify the discs on yearly basis and see if they start getting dead sectors. Especially if there are visible signs of disc rot.

1PB (petabyte) is equal to 1080TB (terabyte) which is equal to 1166400GB (gigabyte) After formating to the filesystem on Windows it becomes a round 1000TB or 1000000GB. So doing the same math as above using these values, it would be like this: 1166400 / 25 = 46656 (discs to burn) 46656 * 20 = 933120 (minutes of burning discs) 933120 / 60 = 15552 (hours of burning discs) 15552 / 24 = 648 (days of burning discs) All this would mean: 1 year and 283 days of burning discs.

Hi, I'm new around here and this is my first post on ImgBurn's forum so bear with me 🤔 A friend of mine started doing a pretty nice project with an animated series I liked, but due to the sheer size the final result had I was in a pinch deciding where to actually store all of it... after thinking on the situation for a bit I reached the conclusion to use BD-R discs. For my needs best would have been BD-R DL or BD-R XL but their price kept me VERY far away, so single layer (SL) discs were the way to go. Considering the market in my state and prices in local retailers, I decided to get spindles of MediaRange BD-R SL discs at a price of 0.59$/disc with shipping included. Upon the arrival of 4 spindles containing 25 discs each I started researching on the best method to burn BD-R discs with ImgBurn, after a few dozen discs burned with no issues, I wanted to see how high rated are they among other people by searching the disc's ID. (now imagine how deep my soul started sinking when I saw that CMC discs had a high failure rate after burning them an year or so later) I've started doing a comprehensive list of .IBG files from ImgBurn's burning results, making snapshots of DVDInfoPro's graphs, gathering information about the discs and my Blu-Ray Writer, which doesn't have pretty good reviews either (soul proceeds to sink deeper) and I am now patiently waiting for them to reach 1 year old so I can start verifying and testing them if they TRULY are that cheap for a reason. I'll leave below Google Drive links of my research's results, so if anyone sees the information I provide here as useful and actually tries to work with these discs, tell me how it went in the thread. ImgBurn Graph Data Files (66 Discs) DVDInfoPro Graph Snapshots (66 Discs) DISC INFO Package Photos And here is the data of the driver I've used to burn these discs with. (maybe relevant to those who burn the same discs but with another writer and have, or not, issues with the discs afterwards) ASUS BW-16D1X-U NOTE 1: Unfortunately, it would seem this Blu-Ray Writer doesn't support PIPO scans, so proper verification according to the standard of ImgBurn's team won't be possible unless I get my hands on one which supports it. NOTE 2: I will update the content of the links above with more data after the first year since I burned the discs ends. As I will make a verification for each disc to see if they have any failures with VSO Inspector. NOTE 3: Any ideas of how I could research the discs further would be an awesome help 😥 THANKS FOR READING!