LabRat Posted January 13, 2015 Share Posted January 13, 2015 There is a lot of computer science that goes into making flash drives work but DJ’s only need to understand a few key concepts when looking for the right one to hold your music for a gig. Flash drives are the natural successors to floppy discs and CDs that allow for storage into the gigabytes (GB) compared to megabytes (MB).All of Pioneer’s recent CDJ models such as the CDJ 2000 Nexus and CDJ 900 Nexus have the ability load media from flash drives alongside disk media. The latest model, the XDJ-1000 (check out DJTT review), solely uses USB flash drives. They come in all shapes and sizes but run in different capacities due to their file systems and USB type.File SystemsFirst of all, all CDJs use specific file systems when reading your tracks to be played. CDJs (and most media players for that matter) only read FAT16, FAT32 or HFS+ file systems from flash drives because they are great for indexing files (such as different tracks) and recalling the information quickly.Most flash drives are FAT systems, but some rare cases such as NTFS, will have compatibility issues.Speed – USB 2.0 or 3.0?Secondly, when looking for USB flash drives, you need to pay attention to whether a drive is USB 2.0 or USB 3.0. The distinction between 2.0 and 3.0 is how fast a device can transfer data, with 3.0 being the fastest.While many laptops on the market today have USB 3.0 capabilities, Pioneer CDJ’s do not. Avoid buying a USB 3.0 flash drive in hopes of faster track analyzing because it will only read it at USB 2.0 speeds. However, you will notice the increased speed with USB 3.0 when transferring music between a computer and the flash drive. To take advantage of USB 3.0 your computer must have USB 3.0 ports. Flash drives that use USB 3.0 are backwards compatible with USB 2.0 ports but will run at USB 2.0 speeds.Not all USB drives are created equal in terms of speed. Just because two USB drives are USB 2.0/3.0 doesn’t mean the transfer rates will be the exact same. As you’ll see later in our USB drive comparison, the transfer speeds vary, even from the advertised speeds. Although both USB 2.0 and 3.0 have a max transfer speed (2.0 = 480Mbps, 3.0 = 4.8Gbps) most drives won’t reach these speeds. So you’ll need to dig a little deeper for the real transfer rate when you’re shopping for the fastest DJ USB drive.Storage – How much space/music do you need?The next thing to carefully consider when selecting a USB flash drive is storage size. Flash drives come in various sizes ranging from 1 GB all the way up to a whopping 512 GB, but the most common sizes will be in the 16 – 64 GB range. How many songs can we fit per GB? The file size of a 320kbps MP3 (Find out why we recommend 320kbps) ranges from 8 MB – 15MB, sometimes even larger depending on the length of the track.To keep the math simple we’ll assume all of our songs are 10 MB. There is 1024 MB in 1 GB, therefore each GB gives us 100 songs. So a 16 GB flash drive should hold 1600 songs. The size required really depends on the DJ. If you play genre specific sets then you can probably get by with 16 GB. However if you’re a mobile/wedding DJ that needs to have a wide variety of music then you may need 64 GB.SD CardsAnother form of flash media is the SD card. Unlike USB drives which are on most current Pioneer CDJ’s, SD cards are only on the CDJ 2000 and CDJ 2000 Nexus. These are just as portable as USB drives, but don’t protrude from the top. SD cards also have their own file systems you have to pay attention to because CDJs and most media players only accept SD and SDHC cards. SD stands for Secure Digital and SDHC stands for Secure Digital Higher Capacity.They both perform in the same ways while the major difference being that SDHC cards hold more storage (4-32GB) than SD cards. An important factor on all cards is to consider the class of the card. This is the rated speed of the card and the maximum speed (MB/s) it can write/read. This is important to a DJ because the faster the track can be read, the faster it can be loaded and played.Choosing Your Digital Storage CrateNow that we know more about how storage systems work, choosing a flash drive comes down to a few important characteristics:SpeedStorage SizeDurabilityBelow is a list of flash drives that we found to work best with Pioneer CDJ’s. This list is based on the criteria above and affordability.Best USB Flash Drives for Pioneer CDJ’sCorsair Flash Survivor Stealth (Most Durable)Advertised Speed: USB 3.0, Read = 85 MB/s, Write = 70 MB/sReal Speed: Average Read = 55 MB/s, Average Write = 26.3 MB/s*Storage: 64 GB (other sizes available)Size: 7.5 x 1.8 x 5.4 inchesEnclosure: Hard-anodized, aircraft-grade aluminum housingPrice: $54.99 (Available on Amazon)SanDisk Extreme CZ80 (Fastest)Advertised Speed: USB 3.0, Read = 245 MB/s, Write = 190 MB/sReal Speed: Average Read = 156 MB/s, Average Write = 107 MB/s*Storage: 64 GB (other sizes available)Size: 0.4 x 0.8 x 2.8 inchesEnclosure: Plastic, retractable USBPrice: $47.99 (Available on Amazon)SanDisk Ultra Fit CZ43 (Great Value)Advertised Speed: USB 3.0, up to 130MB/s read speedReal Speed: Average Read = 86.5 MB/s, Average Write = 24.7 MB/s*Storage: 64 GB (other sizes available)Size: 0.8 x 0.6 x 0.4 inchesEnclosure: Plastic coverPrice: $32.99 (Available on Amazon)SanDisk Cruzer Force CZ71Speed: USB 2.0, Average Read = 19.9 MB/s, Average Write = 3.98 MB/s*Storage: 32 GB (other sizes available)Size: 1.4 x 0.3 x 0.5 inchesEnclosure: Durable metal casingPrice: $19.89 (Available on Amazon)Kingston Data Traveller SE9Speed: USB 2.0, Average Read = 18.8 MB/s, Average Write = 6.83 MB/s*Storage: 32 GB (other sizes available)Size: 1.5 x 0.2 x 0.4 inchesEnclosure: Durable, sleek metal casingPrice: $14.66 (Available on Amazon)*Real Speed data came from USB UserbenchmarkThe WrapThere are no shortage of USB flash drives on the market, both good and bad. We did our best to narrow it down to some solid choices. As a final note, be sure to avoid freebie or generic USB flash drives. These use low quality components and the transfer speeds are usually very poor. We hope this list makes it easier for you decide on a high quality USB flash drive to pick up for your next CDJ set.Source: http://www.djtechtools.com Quote Link to comment Share on other sites More sharing options...
Pending Posted March 30, 2015 Share Posted March 30, 2015 Funny enough was just gonna post a thread asking for USB suggestions then found this great write up decided to go with the SanDisk Extreme CZ80 Quote Link to comment Share on other sites More sharing options...
LabRat Posted March 30, 2015 Author Share Posted March 30, 2015 i use sandisk, and most of my buddies do too. in my experiences, they're bulletproof for the CDJs Quote Link to comment Share on other sites More sharing options...
Pending Posted March 30, 2015 Share Posted March 30, 2015 i use sandisk, and most of my buddies do too. in my experiences, they're bulletproof for the CDJsI used a verbatim at HQ did notice it was bit slow loading the waveforms and details on some tracks, will a better usb make that process load quicker? Note it was the first time I'd used CDJs with a usb Quote Link to comment Share on other sites More sharing options...
LabRat Posted March 30, 2015 Author Share Posted March 30, 2015 i use sandisk, and most of my buddies do too. in my experiences, they're bulletproof for the CDJsI used a verbatim at HQ did notice it was bit slow loading the waveforms and details on some tracks, will a better usb make that process load quicker? Note it was the first time I'd used CDJs with a usbI think if you process your tunes through rekordbox it should be ok. My made had a tdk USB and rekordbox just didn't respond to it. It crashed every time. That's probably the worst I've seen so stay clear of them Quote Link to comment Share on other sites More sharing options...
Pending Posted March 30, 2015 Share Posted March 30, 2015 Ok sweet thanks for the help! Quote Link to comment Share on other sites More sharing options...
LabRat Posted March 30, 2015 Author Share Posted March 30, 2015 Anytime! Quote Link to comment Share on other sites More sharing options...
Duz Posted March 30, 2015 Share Posted March 30, 2015 any company that has a decent reputation for memory should be fine (kingston, corsair, sandisk, samsung etc). Should be noted that the usb3.0's I had @ hq didn't get read at all by the cdj's there Quote Link to comment Share on other sites More sharing options...
BeatLeSS Posted March 30, 2015 Share Posted March 30, 2015 any company that has a decent reputation for memory should be fine (kingston, corsair, sandisk, samsung etc). Should be noted that the usb3.0's I had @ hq didn't get read at all by the cdj's there Probably NTFS. Quote Link to comment Share on other sites More sharing options...
Duz Posted March 30, 2015 Share Posted March 30, 2015 Didn't even think about that, useless cdj devs need to keep up with the times Quote Link to comment Share on other sites More sharing options...
Mitch Posted March 30, 2015 Share Posted March 30, 2015 Needs to be fat32 / hfs+ (MAC)I use usb3 Sandisk ones and they work fine Quote Link to comment Share on other sites More sharing options...
AlexJ Posted March 30, 2015 Share Posted March 30, 2015 ive used my usbs across alot of cdjs (can be playing across 10-12 different ones on any given week) and have definately found the sandisk ones to be the most reliable. the cheap models ive been buying lately ive found have had some corruption issues however i dont know how that persists in the higher end models. I have a shipment of usb's and sd cards coming in the next week or so so will report how i go with the higher end models but dont anticipate any real issues. on the note of usb 3.0 i have found that you can get compatibility issues across cdjs even when formatted correctly. especially with cdj's with older firmware (i think 4.19 and above are fine, however i have definately had issues with 4.18)i have also had some read issues when the cdj's are fully loaded cd's, usb, sd and computer link to serato. (for those interested i was closing for a dude who had serato linked to the cdjs (where his backup form of media was a mix cd that he had) i whacked in my cd card (my backup media) and then went to load my usb in (primary media source). Usb wouldnt load and then cdj crashed altogether. Obviously guy was on the other channel but it meant some mad scrambling to connect his left channel to a sl-1210 (which he couldnt use... so i could free up the cdj while another one was being fetched)moral to the story overloaded players can crash. usb 3.0 sometimes doesnt load and you get what you pay for Quote Link to comment Share on other sites More sharing options...
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