LosslessConverter technical FAQ

You can load a physical DVD or Blu-ray, a DVD VIDEO_TS or Blu-ray BDMV folder, or a DVD/Blu-ray ISO image. Physical media requires a compatible optical drive; folder and ISO sources can be opened directly from local, external, or USB storage.

LosslessConverter supports region codes and common DVD/Blu-ray protections including APS, CSS, ARccOS, CPRM, AACS, BD+, AACS Bus Encryption, and Cinavia. Support varies by disc title, optical drive, operating system, and product version.

Video/Audio creates portable MP4, MKV, MOV, MP3, or other files. Disc Folder preserves the complete DVD or Blu-ray folder structure. ISO creates a complete image for a 1:1 archival backup.

Choose MPG Lossless for DVD or a lossless MKV profile for Blu-ray, then keep the source resolution up to 4K. You can preserve every chapter, audio track, and selectable subtitle or keep only selected languages. External audio and subtitle tracks can also be added. Mac output currently supports one hard-coded subtitle track.

Confirm that the drive supports the disc type, reconnect external power or USB, clean the disc, close other playback or burning apps, and reload it in LosslessConverter. A Blu-ray disc requires a Blu-ray drive. If the physical disc remains unreadable, test whether the drive can read another disc and send the disc title, region, drive model, and error message to support.

Laws vary by country and may distinguish homemade or unprotected media from copy-protected commercial discs. Do not distribute, sell, or publicly share ripped content without permission. Use LosslessConverter only for media you own or are authorized to process and check the rules that apply where you live.

Hardware acceleration uses specialized computer hardware to complete work faster than a general-purpose CPU alone. For video, this commonly means CPU and GPU support for decoding and encoding, such as Intel Quick Sync Video, NVIDIA CUDA and NVENC, and AMD acceleration technologies.

Enable it for compute-intensive video jobs such as 4K UHD processing, H.265/HEVC encoding, large batches, and supported AI features. Keep the app and graphics driver up to date for reliable hardware detection.

Open Help > Preferences to review the detected hardware. For H.264 or HEVC processing, confirm that you selected a compatible codec and disable Auto Copy when that option appears. Updating your GPU driver can also resolve missing or outdated acceleration support.

AI enhancement requires substantially more computation than standard transcoding. Runtime depends on your CPU and GPU, source duration and resolution, the selected output, and the model. Super Resolution includes Fast and High Quality modes so you can choose the balance that fits the job.

Identify the GPU under Control Panel > Hardware and Sound > Device Manager > Display adapters, then download the latest compatible driver from the official NVIDIA, AMD, or Intel site. Restart Windows after installation.

Gen Detail generates additional detail and sharpness, making it useful for skin, hair, and richly textured footage. Real Smooth focuses on reducing visible noise and imperfections for a smoother result. Try both on a short sample when the best choice is not obvious.

Sharpening, noise reduction, stabilization, upscaling, and frame interpolation can improve presentation. A higher bitrate may reduce new compression artifacts, but it cannot restore detail missing from the source.

AI features are currently available only in the Windows version. Core conversion and media-processing features are available on Mac.

The output size depends on source duration and your settings. In Compressor, specify a target size or tune codec, bitrate, resolution, frame rate, GOP, and audio parameters. See the video compression guide for scenario-specific recommendations.

Yes. Import the multi-track file, select the audio language or track you want, choose the output profile, and convert it like a standard video.

First save the video through the Downloader window, then open the Video Converter, import the downloaded file, and choose the required output format. Only download or convert content when you have the necessary permission and your use complies with local law.

LosslessConverter supports 370+ codecs and 420+ output profiles spanning more than 1,000 media combinations. Common formats include MP4, MOV, MKV, WebM, AVI, MXF, AV1, HEVC, ProRes, MP3, FLAC, WAV, AAC, GIF, image formats, device profiles, and web presets. See the full format overview.

The Windows version supports 64-bit Windows 7, 8/8.1, 10, 11, and later. The Mac version supports macOS 10.13 High Sierra or later, including supported Intel and Apple silicon computers.

Open LosslessConverter, select Upgrade, enter the license code sent with your order, then choose Activate. To transfer a license that was already activated, contact [email protected] with your order details before activating it on the replacement computer. The replacement must use the same operating system as the previous computer.

The trial lets you test the workflow and limits many processing jobs to the first three minutes. Check the official purchase page for current license inclusions and update eligibility.