[Motorola Droid RAZR] Ohmster:
True. This is the product I bought and love the hell out of it.

SanDisk Ultra 64GB MicroSDXC Class 10 UHS Memory Card Speed Up To 30MB/s With Adapter - SDSDQUA-064G-U46A

ORDER PLACED April 1, 2014. As you all know, I am a total Safe Strap backup freak. I backup *everything* and ALL roms before updating. And why not? This monster can hold all of it and a LOT more. But, it did not exactly give me a warning when it locked into read only mode. I had no idea of this and the last 3 build backups I made were never saved, although everything appeared to work well. When Titanium Backup started giving me "Backup Failed, Insufficient space" messages, I had to investigate. Checking the TiBu backup folder location gave me the first real clue. "This folder is not writable" in red. As I back keyed up higher in the file system tree, I never got a writeable folder until I hit the /storage folder. Now I get it. The SDCard is corrupt or damaged, although all existing data was still there and accessible. The SanDisk SD Card has a ten year warranty and I have the receipt so other than the hassle, it is not really a big deal. I installed my old, formatted 16Gb sdcard and am back in business until the replacement arrives. I cannot call it in because they are closed at SanDisk on the weekends and Monday is a Federal holiday.

The explanation and help for this issue with the SanDisk memory cards can be found here:

Sandisk Ultra 64GB can't be formatted or permanently altered

I love this drive and for $40, it is one of the very best accessories that you can buy for your Motorola Droid Razr phone. You get so much room on this card that you can store all of your pictures, music, and lots of videos. Since CyanogenMod is one of the few roms that can bypass the Google read only restriction on external sdcards, it makes a perfect match to this phone. :good:

When I got the new sdcard, I wanted to copy my old 16Gb sdcard to the new one and [MENTION=2891643]Mr-Glass[/MENTION] really saved my butt. He gave me instructions and the two free tools to get the job done:

HDD Raw Copy Tool

MiniTool Partition Wizard Free Edition

These tools are both free. the HDD Raw Copy Tool (Comes with an installer for Windows or as a portable app can use anywhere) will copy the original sdcard to an image file on your PC (Buy a cheap $10 USB micro sdcard reader) and use the same tool to restore the image to the new 64Gb sdcard. Only problem is you will get a 16GB card that way. Now use MiniTool Partition Wizard to stretch that partition out to the full size of the 64Gb sdcard. It worked like magic, was quick, and Mr-Glass really helped me out with this. Mr-Glass does not talk as much these days, perhaps he moved on to a new phone, but he is a terrific asset if you really need help because he is very experienced and skilled.

That's it, I am back in business with my 16GB sdcard and when the new one comes, I will be none the worse but for a few backups lost and a couple of pictures that I really didn't need. My statement on the possibility of the cm11 rom casued this issue was premature.

The CM11 roms are all very good now. The 01/12 Build is the very best we have so far. Use this rom for your CM11 install.

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The Changelog shows a lot of stuff to come, mostly other languages and some other fixes for the rom.

If you are considering a larger external sdcard, this SanDisk class 10 card is one of the very best for the forty dollars it costs. Happy Romming guys! :D

EDIT:

I have already submitted my RMA request to SanDisk for a replacement 64Gb micro sdcard. Everything appears to be in order and they have emailed me back, on Sunday, several times already. To get an RMA, you need proof of purchase, pictures front and back of the card, the device information in which you use the card, and the microscopic serial number on the back of the card. I used a set of 10X optical magnifying glasses and could barely make out that 12 digit serial number, wow! So far, so good. SanDisk is taking this seriously and will replace the defective sdcard. :D

---------- Post added at 04:12 PM ---------- Previous post was at 03:46 PM ----------

Not yet Welder, but I did save this tidbit in my Droid Razr Maxx files for future use. I am a little low on slot space. With stock Jellybean taking up nearly half of the available 8Gb internal sdcard space, I just had to bump up my cm11 slot 1 partition size to nearly the same size as stock, I could not update Google due to "insufficient space". So bumping up Data to 3000Mb, System to 800Mb, and I left Cache at 300Mb, I don't really have the rom to create a generous rom slot for another rom. I do have *some* storage on the internal sdcard as well. Last time I tried Paranoid Android, I could only create a small, 2Gb TOTAL rom slot and I could not even update Google to the high quality UK female voice that I wanted (250Mb download).

Now I will do things different. Although I have tamed down Jellybean quite a bit by employing the methods mentioned in the Guide, I really have no use for it and that Stock ROM Slot is Premium real estate, being such a big slot that cannot be changed, it would be perfect for my FINAL CM11 rom. I am only waiting for CM11 to finish and pick the best rom available to install it as stock. Then I have ALL available slots free to experiment with new roms. Plus, when I get my replacement 64Gb SDCard, I will try to offload as much personal data as I can to the external card.

Thank you for the advice. I am always looking for another nice rom to play with and Liquid Smooth probably has the highest recommendation rate of all alternative roms there are. Now that there is a Milestone build available, THAT is something I really want to try. CM11 should be done within a month, I predict, so your post has been saved to my ROM folder for Razr and it will be the very next rom I choose.

[MENTION=5057697]welder73[/MENTION] can you give me the download link for it? Anytime I try to find a recommended rom to try, there are so many different sites that I end up picking the wrong one. Thank you my friend. :D