Rating: 
Summary: Skipping, skipping, skipping.
Review: This is a great little player with plenty of cool functions. It is only good, however, so long as you are sitting still. Even with the firmware upgrade, mine skips when I run, drive in the car, and even WALK. It is incredibly annoying. Whilst exercising with it, it will stop playing every few minutes, and I will have to stand still and wait for the file to load back up. The 120 second anti-skip protection is a total joke. I would not recommend this item unless you plan to go NOWHERE with it. VERY frustrating.
Rating: 
Summary: Riovolt player
Review: This player is great! Sounds good, however, the volume seems to be low even when it turns on to it's loudest, as well as skips when you are moving? I dont know if it's the cause of low batteries or something else. Overall, this player works great!
Rating:
Summary: Great value for Money with excellent quality
Review: It is a good product with considerable features. Sound quality is very good. Earphones need to be improved. Otherwise it is a really good product with a sporty look and wide features. Also it is better than others because it can play MP3, Audio and WMA files. Power consumption is less because it reads in advance and buffers avoiding any hiccups and shocks
Rating:
Summary: Don't Listen to These Reviews
Review: Many people on this site are crazy! I bought this product at least six months ago, and for fun, I decided to see what these intelligent Amazon reviewers had to say about my beloved RIO VOLT. Well, The 1-star comments are complete trash, I suggest you dont waste your time reading them. It is quite apparent to me now that some people have no clue how to use electronics. I wouldn't say I know a lot, but I know enough to be able to use this product! Come on, if you can't get this simple product to work IT IS YOUR OWN FAULT! There is no way that the RIO VOLT doesn't work. I could be happier with it. In hindsight however, I would recomend a higher model, because the SP90 is getting outdated. In conclusion, I recomend this Product if you know how to use a computer. IE; you can type a history paper on Microsoft Word.
Rating: 
Summary: SP-90 player, the best thing that I have ever bought
Review: Ok let me break this down for you who are considering purchasing this.
1. The firmware is not supose to be upgradeable, but it is. Download the firmware upgrade from riovolt.com for the SP-100, this is the medium range model that is upgradeable. Look for instructions on how to make a hack for the .hex file.2.When upgraded their is no gap in between two songs if u dont skid ahead. 3.My cd player does not skip. 4.The navigation button 5.A line of text taken up for a person dancing (ok thats kind of stupid, but that's no big deal) 6. New version of firmware loads much faster and supports multiple M3U files 7. The battery lid is not as loose as eveyone says it is. I think mine holds fine ( if you didn't say that others are loose, I would not have even considered mine to be loose) 8. The new firmware lets you turn off the cd player, open it up and it will still pick up back where it was at! 9.The 2.10 firmware lets your music fade in when you start it up so it isn't to loud at the second you turn it on. 10. Everything is great about it, no skipping and the upgrade makes the player even better. If you need any cd player, then I would HIGHLY recomend this one (1 year parts and labor warrenty). By the way, do not buy sony cd players, they are great, but if the product breaks, they do not stand behind their warrenty. I know this from experience. The spindle shattered on it and they wouldn't help me at all. So if u buy any Sony product, then don't be suprized if it will cost as much or more to have the product fixed, they are a buy-at-your-own-risk company.
Go with Rio, they have a one year parts and labor, Sony just has 3 months on labor.
Rating:
Summary: Heckofadeal!
Review: I've had my sp90 for around 6 months now, and am still amazed at how great it works. Perhaps I'm a bit easier to please than some, but it might be due to my experiences with the first mp3 player I had (it was a Coby -- a cheap brand). It had next to no features, and it chewed batteries about 5 times faster than the RioVolt SP90. I sold the Coby on Ebay and bought an SP90 and have been very pleased with it since. In fact, I just ordered another two SP90s; one for each of my daughters. Other reviewers have mentioned the downsides; irritating dancing characters on the LCD, battery cover that doesn't have a very solid-feel latch (tho mine stays shut unless I physically slide it), and no backlight. I gave it 5 stars anyway since the price (if you factor in the rebate) is extremely low given the high quality of the sound, the many features, and the excellent implementation (compared to my old Coby MP3 player) of the MP3 and WMA algorithms. I disagree with some reviewers who thought it chewed batteries. Well, it does use them up quicker than my Sony CD player, but then again my Sony doesn't play MP3s. As I said before, my experience with another MP3 player was much worse. At any rate, I've switched to rechargable anyway, which work great and I recommend them for this and all your other digital-electronic playthings. I did the firmware hack (from version 1.00 to version 2.10) and am extremely pleased. Now it remembers where at what point on the CD I turned the player off, and goes back to that point when you turn it back on (if I recall correctly, it will keep track of up to the last 10 CDs(MP3s) you had inserted into the unit. The many other features of the 2.10 firmware can be found at the SonicBlue website under SP100 support. Unlike a few other reports, I've had zero skipping problems (but then again, I'm not a jogger). Go for it! It's a super deal!
Rating:
Summary: UnBeatable For The Money!
Review: Got this one for my girlfriend. We have both been very pleased with the SP90. It has many features that you won't find in ...price range. The biggest is MP3 File naming. You can store your songs on CD's organized in folders and sub-folders. I usually save mine 3 layers deep: Genre Folders (rock,country,classical,etc.) -> Artist Folders -> Album Folders. The ReoVolt has no trouble playing these discs. Navigation is easy as long as you organize the CD properly before burning. The EQ presets are easy to use by touching a button once to show current setting,again to switch to the next and so on in a cycle. Battery life is excellent with MP3 discs. Not so well with regular CD's but acceptable(we never use regular CDs anymore). Make sure you turn your skip protection to the max else it will skip easily with regular CD's. My girlfriend is very active and uses it in the gym she reports no skipping at all. (note* she always and only uses MP3 discs) I always save record my MP3's at 128kbps and it yields very high sound quality near CD. I can get 170 to 200 songs on a single CD. The included ear bud phones have great sound, and they are decently comfortable. Yes the dancers on the display are annoying! Simple solution: Don't Look at It!
Up Side:
Great price, good sound, excellent file system lots of anti-skip
Down Side:
Not the best with regular CD's. Unit is built as and MP3 player first. Which works wonderful for me. I don't give a rat's a## about standard CDs anymore. I have the SP250 for myself and I love it also. ReoVolt has put a little more joy in my life. I have had zero reliability problems from either unit. Thank You!
Rating:
Summary: pause between MP3 songs
Review: The player is a great value. I just wanted to let everyone know that there is always a pause between MP3 songs. This isn't much of a big deal unless you listen to live albums or electronic / trance music where the songs 'blend' together. Then, it is quite annoying.
Rating: 
Summary: Poor WMA Playback
Review: The unit did not do well at playing back WMAs. I tried various bit rates and burn rates on the CD burner as suggested in the accompanying leaflet, but the thing would not play back without glitches. The WMAs played back fine on the computer.
Rating:
Summary: BUYING RIOVOLT SP90
Review: I like my newly purchased SP90. It plays my MP3s well compared to another player that I bought which kept skipping even when the MP3 player was in one place. The only one thing this player lacks is Firmware upgradability like the higher models. If the SP90 had this, and at this price, I would definatley give it five stars!
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