Jazz Disk Bench Pro vs Offloadr

Jazz Disk Bench is a pro-grade storage performance measurement tool designed for SSDs, SD cards, and internal/external storage. Get accurate data on your device's throughput with industry-standard testing methods. Key Features: * Sequential Speed Test: Measure peak performance for copying large files (movies, games, etc.). * 4K Random IOPS: Evaluate system responsiveness. Low random performance is often the root cause of device lag. * Pro Stress Test: Push your storage to the limit with 2GB–100GB tests to check stability and "real" NAND speed after cache exhaustion. * External Storage Support: Fully compatible with USB drives and SD cards via custom folder selection. Benchmark Details: * Sequential Test: Reads/writes 16MB blocks sequentially. Perfect for testing raw transfer speeds. * Random Test (4K): Reads/writes 4KB blocks at random locations. This reflects how fast your OS launches apps and handles small files. * Stress Test: Sequentially writes massive data (up to 100GB). Ideal for pro users to test SLC cache size and sustained NAND write performance. Note: For external storage tests, ensure a stable connection and write permissions.

Offloadr backs up footage right on your iPhone and iPad – from card to SSD and NAS, verified and documented. No laptop, no subscription, no cloud. PROJECTS – SET UP ONCE, USE ALL SHOOT Create a project and Offloadr remembers everything that doesn't change: destination drives, verification method, companion files and the shoot day. Next time you open the app everything reconnects – the next offload only needs the card. The shoot day counts up automatically. History is grouped by project, with total size and a combined report per production. If you just want to back up one card quickly, the old path is still there: no project, two taps. EVERY FILE VERIFIED INDIVIDUALLY Offloadr copies each file and then reads it back from the destination. Only when the checksum matches the original does it count as secured. If even one file fails, Offloadr says so clearly – full screen, in red, with the number of affected files and the instruction not to erase the card. You can also have the source read a second time (3-way check). If it differs from the first read, the card or the reader is faulty – a failure a normal verification cannot catch. WRITTEN THROUGH TO THE MEDIUM Offloadr forces every file to physically reach the flash cells before it counts as secured. Without this, a drive reports "written" while the data still sits in its volatile cache – unplugging would lose it. Not switchable, because the entire promise depends on it. HANDOVER PACKAGE, AUTOMATICALLY After every offload the destination holds everything a clean handover needs: • ASC MHL v2 in the "ascmhl" folder – numbered generations, directory hashes and a chain file, exactly as Pomfort Silverstack, YoYotta and Hedge expect • PDF report with file list, checksums, duration, throughput graph and thumbnails • Metadata as CSV and JSON – capture dates, camera details, GPS optional • Complete log of the operation PDF, log and metadata go into the "_Offloadr" subfolder – next to the clips there are only clips. MHL CHECKER Re-verify a backup later: the MHL manifest is read back and every file recomputed. That tells you whether anything on the drive has since been corrupted or went missing while copying on. Manifests from Silverstack, ShotPut Pro or Hedge work too. MORE • Two destinations at once (SSD and NAS) in a single pass • Photos and videos from the Photos app as source, including iCloud download • Incremental: skip files already backed up – for interrupted offloads • Live Activity on the Lock Screen and in the Dynamic Island • Battery and free-space check before starting • Warning when a card was already backed up within the last 24 hours • Proof per history entry: time, device and checksum – detects later modification • German and English VERIFICATION METHODS xxHash-64 by default – the same thing Silverstack, Hedge and ShotPut Pro write. SHA-256 for jobs where a broadcaster or archive requires it. NO CLOUD, NO ACCOUNT Offloadr works entirely on device. No account, no sign-up, no analysis of your footage, no cloud transfer. Your data goes from the card to your drive – nowhere else. REQUIREMENTS A card reader or drive on the USB-C port, or a NAS share mounted in the Files app. Speed is set by your hardware: over 1 GB/s on NVMe via USB-C, more with Thunderbolt on iPad Pro.