- Oct 23, 2004
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Originally posted by: Azndude51
I just bought some 8x Maxell DVD-Rs from Walmart today. I burned a DVD at 16x with my NEC 3500A and it played perfectly on my 4 year old DVD player.
DVD-R market plagued by fake media and inconsistent quality
Posted by Seán Byrne on 13 February 2005 - 01:16 - Source: cd-rw.org
When a consumer purchases budget media that is either unbranded or of a less known brand, they are often not aware of what manufacturer makes those discs. Generally the media identifier code on the media is one way to find out the manufacturer, however it appears that some of these generic brands are exploiting the codes used by Taiyo Yuden to falsely make customers think their media is manufactured by Taiyo Yuden. A few brands that do this include Budget, BulkPaq, DataWrite and Hyundai.
Quite often the media quality from these brands vary quite a lot, with some media which may not be playable in certain DVD players, DVD based game consoles and give variable read performance in DVD-ROM drives. However, faking the media identifier codes of known high quality manufacturers may put customers off from media using these codes, thus in turn harming the official manufacturers with these codes.
At the moment, probably one the safest choices of media is Verbatim's DataLifePlus and Pastel products. The current pastel series is manufactured by Taiyo Yuden and AdvancedAzo series by Mitsubishi Kagaku, Mitsubishi or CMC Magnetics. However while some generic brand media may give poor results or use fake media identifier codes, it is often best to test media with trial and error as many other budget brands do indeed use media from high quality manufacturers with proper media identifier codes. ItalianJob used our news submit to let us know about the following news:
It is all too common that the customer is not aware what DVD recordable media he is actually buying. The brand printed on the disc or the packaging may tell nothing about the manufacturer. Every recordable DVD has a media identifier code, but even that doesn't give you certainty of the product you have purchased. Too often trial and error is needed in order to find good and compatible media.
This article covers a few products currently found on the market. It is possible that the quality of the products vary a lot. The method used for analysis is not scientifically accurate. Most of the discs were burned with a LiteON SOHW-1653S, and some with a NEC ND-1300. The LiteON was used for error rate analysis, with the KProbe v2.4.2. Note that is not a 100% accurate method for analyzing quality, but it usually gives a pretty good idea. Some playback tests with DVD players and game consoles were also done.
Fake Taiyo Yuden
The Japanese Taiyo Yuden has been a premium quality optical media manufacturer for years. Unfortunately, some manufacturers are now exploiting the Taiyo Yuden media codes on their lesser quality products. Fake discs identified as TYG02 can been seen under various brands. These include, but are not limited to: Hyundai, Budget, BulkPaq, DataWrite, and many others. We spoke to OC-Freak of NorwayDisc.no, and according to him the fake discs are likely to be manufactured by Infosmart, Anwell, UME Disc, Vanguard or 3A Media.
Read the full article here.
Like the quality issues with some budget recordable CD media, the same would be expected for recordable DVD media also. However it is not until now that we find out that some budget manufacturers fake their media identifier codes to make their customers think that their media is from a well known manufacturer. Then again, as the budget brand media is cheap, it may be worth purchasing a few discs from a various budget brands and doing some testing to see which media offers the best performance and compatibility.
RITEK having quality issues?
RITEK is one of the largest optical media manufacturers. In the early days of CD-R recording, RITEK got a notorious reputation by shipping some extremely low quality 1-4x CD-R media. But RITEK picked up, and they have shipped very good quality ever since. Transition to DVD production was smooth, and they stayed as a trustworthy manufacturer.
But recently there has been some questioning about RITEK quality around the WWW discussion forums. It seems that the quality has slipped a notch. RITEK media is sold under various brands, including but not limited to: RITEK, RiDisc, RiData, Maxell, Traxdata and many others. Especially the RiDisc and RiData branded media is often considered as lower quality brands, but recently the discs carrying the RITEK name haven't been too great either.
Here is a printable 4x Ridata, identified as a RITEKG04 disc, and bought from nierle.de. Consoles and players have a hard time with this. The 25 disc spindle where this disc was found really demonstrated some quality control problems. Some of the discs were fine, or even excellent, while the worst ones were totally unusable. There were clear visible defects in the dye towards the end of the disc, which is clearly seen from the graph as well. So the dye itself is decent, it is just poorly laid on the disc.
This kind of disc should have never passed Q&A testing, or be sold as "A-grade" media.
What to buy then?
So how to be on the safe side of things? Naturally we haven't tried every single brand on the market, so it is hard to list all the recommended ones. At least it seems that Verbatim DataLifePlus, and Verbatim Pastel products are pretty much a 100% safe choice. The pastel series is (currently) manufactured by the Taiyo Yuden. The manufacturer of DataLifePlus AdvancedAzo varies, but can be identified by looking were is the product made at. India should refer to Moser Baer, Singapore to Mitsubishi Kagaku, and China to Mitsubishi or CMC Magnetics. Even though the manufacturer varies, they all have the AdvancedAzo dye and are manufactured by Mitsubishi/Verbatim standards.
Originally posted by: NightCrawler
Nice Deal: http://www.rima.com/Merchant2/merchant....ROD&Store_Code=R&Product_Code=1733-100
Originally posted by: NightCrawler
The -R market is filled with junk media, +R is a lot safer but that also has some bad media.
DVD-R market plagued by fake media and inconsistent quality
Posted by Seán Byrne on 13 February 2005 - 01:16 - Source: cd-rw.org
When a consumer purchases budget media that is either unbranded or of a less known brand, they are often not aware of what manufacturer makes those discs. Generally the media identifier code on the media is one way to find out the manufacturer, however it appears that some of these generic brands are exploiting the codes used by Taiyo Yuden to falsely make customers think their media is manufactured by Taiyo Yuden. A few brands that do this include Budget, BulkPaq, DataWrite and Hyundai.
Quite often the media quality from these brands vary quite a lot, with some media which may not be playable in certain DVD players, DVD based game consoles and give variable read performance in DVD-ROM drives. However, faking the media identifier codes of known high quality manufacturers may put customers off from media using these codes, thus in turn harming the official manufacturers with these codes.
At the moment, probably one the safest choices of media is Verbatim's DataLifePlus and Pastel products. The current pastel series is manufactured by Taiyo Yuden and AdvancedAzo series by Mitsubishi Kagaku, Mitsubishi or CMC Magnetics. However while some generic brand media may give poor results or use fake media identifier codes, it is often best to test media with trial and error as many other budget brands do indeed use media from high quality manufacturers with proper media identifier codes. ItalianJob used our news submit to let us know about the following news:
It is all too common that the customer is not aware what DVD recordable media he is actually buying. The brand printed on the disc or the packaging may tell nothing about the manufacturer. Every recordable DVD has a media identifier code, but even that doesn't give you certainty of the product you have purchased. Too often trial and error is needed in order to find good and compatible media.
This article covers a few products currently found on the market. It is possible that the quality of the products vary a lot. The method used for analysis is not scientifically accurate. Most of the discs were burned with a LiteON SOHW-1653S, and some with a NEC ND-1300. The LiteON was used for error rate analysis, with the KProbe v2.4.2. Note that is not a 100% accurate method for analyzing quality, but it usually gives a pretty good idea. Some playback tests with DVD players and game consoles were also done.
Fake Taiyo Yuden
The Japanese Taiyo Yuden has been a premium quality optical media manufacturer for years. Unfortunately, some manufacturers are now exploiting the Taiyo Yuden media codes on their lesser quality products. Fake discs identified as TYG02 can been seen under various brands. These include, but are not limited to: Hyundai, Budget, BulkPaq, DataWrite, and many others. We spoke to OC-Freak of NorwayDisc.no, and according to him the fake discs are likely to be manufactured by Infosmart, Anwell, UME Disc, Vanguard or 3A Media.
Read the full article here.
Like the quality issues with some budget recordable CD media, the same would be expected for recordable DVD media also. However it is not until now that we find out that some budget manufacturers fake their media identifier codes to make their customers think that their media is from a well known manufacturer. Then again, as the budget brand media is cheap, it may be worth purchasing a few discs from a various budget brands and doing some testing to see which media offers the best performance and compatibility.
SOURCE: http://www.cdfreaks.com/news/11357
